GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2025-21780 (GCVE-0-2025-21780)

Vulnerability from cvelistv5 – Published: 2025-02-27 02:18 – Updated: 2026-09-08 08:40
VLAI
Title
drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() It malicious user provides a small pptable through sysfs and then a bigger pptable, it may cause buffer overflow attack in function smu_sys_set_pp_table().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:30 UTC
CWE
  • CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 137d63abbf6a0859e79b662e81d21170ecb75e59 , < 3484ea33157bc7334f57e64826ec5a4bf992151a (git)
Affected: 137d63abbf6a0859e79b662e81d21170ecb75e59 , < e43a8b9c4d700ffec819c5043a48769b3e7d9cab (git)
Affected: 137d63abbf6a0859e79b662e81d21170ecb75e59 , < 2498d2db1d35e88a2060ea191ae75dce853dd084 (git)
Affected: 137d63abbf6a0859e79b662e81d21170ecb75e59 , < 231075c5a8ea54f34b7c4794687baa980814e6de (git)
Affected: 137d63abbf6a0859e79b662e81d21170ecb75e59 , < 1abb2648698bf10783d2236a6b4a7ca5e8021699 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 6.1.129 , ≤ 6.1.* (semver)
Unaffected: 6.6.79 , ≤ 6.6.* (semver)
Unaffected: 6.12.16 , ≤ 6.12.* (semver)
Unaffected: 6.13.4 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-21780",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:30:25.628048Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-120",
                "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:36:40.157Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T20:59:26.137Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          },
          {
            "defaultStatus": "unknown",
            "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "V3.1.6",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-08T08:40:35.828Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3484ea33157bc7334f57e64826ec5a4bf992151a",
              "status": "affected",
              "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
              "versionType": "git"
            },
            {
              "lessThan": "e43a8b9c4d700ffec819c5043a48769b3e7d9cab",
              "status": "affected",
              "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
              "versionType": "git"
            },
            {
              "lessThan": "2498d2db1d35e88a2060ea191ae75dce853dd084",
              "status": "affected",
              "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
              "versionType": "git"
            },
            {
              "lessThan": "231075c5a8ea54f34b7c4794687baa980814e6de",
              "status": "affected",
              "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
              "versionType": "git"
            },
            {
              "lessThan": "1abb2648698bf10783d2236a6b4a7ca5e8021699",
              "status": "affected",
              "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "lessThan": "5.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.129",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.129",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.79",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.16",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.4",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "5.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()\n\nIt malicious user provides a small pptable through sysfs and then\na bigger pptable, it may cause buffer overflow attack in function\nsmu_sys_set_pp_table()."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerability is reached exclusively by writing to the local sysfs attribute /sys/class/drm/cardN/device/pp_table; there is no remote or adjacent-network path to smu_sys_set_pp_table().\nAC:L - Triggering is fully deterministic \u2014 write a tiny pptable whose 16-bit usStructureSize matches the write length, then write a larger one; there is no race, no ASLR dependency, and the attacker chooses both the allocation size and the overflow length/content.\nPR:L - The attribute is 0644 by default, but on AMD desktop/handheld/gaming deployments the amdgpu pp_* power-tuning nodes are routinely made group-writable via udev rules so unprivileged GUI overclocking tools can use them, and the fix\u0027s own changelog describes the attacker as a \"malicious user\"; per the choose-higher rule this is scored as an unprivileged local user rather than init-namespace root.\nUI:N - The attacker performs two ordinary write() calls on their own; no victim action, mount, or file-open by another user is involved.\nS:U - The heap corruption occurs in the kernel\u0027s own slab allocator and is confined to the kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Beyond the write primitive, the stale power_play_table_size makes amdgpu_get_pp_table() memcpy up to PAGE_SIZE-1 bytes out of a 1-byte allocation straight back to userspace, directly disclosing ~4 KB of adjacent kernel heap; the overflow itself also enables arbitrary read via corrupted adjacent objects.\nI:H - This is an out-of-bounds heap write of up to ~4 KB with fully attacker-chosen contents starting from a kmalloc-8 object, smashing many adjacent slab objects \u2014 a classic primitive for function-pointer/credential overwrite and privilege escalation.\nA:H - Overwriting kilobytes of adjacent slab objects and freelist metadata reliably produces slab corruption panics/oopses, and smu_reset() is then invoked with the corrupted power-play table, hanging or wedging the GPU."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:54:22.764Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3484ea33157bc7334f57e64826ec5a4bf992151a"
        },
        {
          "url": "https://git.kernel.org/stable/c/e43a8b9c4d700ffec819c5043a48769b3e7d9cab"
        },
        {
          "url": "https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084"
        },
        {
          "url": "https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de"
        },
        {
          "url": "https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699"
        }
      ],
      "title": "drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21780",
    "datePublished": "2025-02-27T02:18:23.543Z",
    "dateReserved": "2024-12-29T08:45:45.764Z",
    "dateUpdated": "2026-09-08T08:40:35.828Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-21780",
      "date": "2026-09-20",
      "epss": "0.00258",
      "percentile": "0.17806"
    },
    "microsoft_vex": {
      "current_release_date": "2026-03-31T14:52:25.000Z",
      "cve": "CVE-2025-21780",
      "id": "msrc_CVE-2025-21780",
      "initial_release_date": "2025-02-02T00:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "5",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-21780.json",
      "version": "4"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "3484ea33157bc7334f57e64826ec5a4bf992151a",
                    "status": "affected",
                    "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e43a8b9c4d700ffec819c5043a48769b3e7d9cab",
                    "status": "affected",
                    "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2498d2db1d35e88a2060ea191ae75dce853dd084",
                    "status": "affected",
                    "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "231075c5a8ea54f34b7c4794687baa980814e6de",
                    "status": "affected",
                    "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "1abb2648698bf10783d2236a6b4a7ca5e8021699",
                    "status": "affected",
                    "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.2"
                  },
                  {
                    "lessThan": "5.2",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.129",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.79",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.16",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.13.*",
                    "status": "unaffected",
                    "version": "6.13.4",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.14",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "18BF0B0B-D95C-472C-A99F-DE209F253F6F",
                    "versionEndExcluding": "6.1.129",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B16AADE5-B2FD-4C14-B4E4-85E8EDAFE775",
                    "versionEndExcluding": "6.6.79",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "13C8DB18-FC60-425F-84E5-3EDDEC61B2FC",
                    "versionEndExcluding": "6.12.16",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2A2093ED-74A9-43F9-AC72-50030F374EA4",
                    "versionEndExcluding": "6.13.4",
                    "versionStartIncluding": "6.13",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "186716B6-2B66-4BD0-852E-D48E71C0C85F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*",
                    "matchCriteriaId": "0D3E781C-403A-498F-9DA9-ECEE50F41E75",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()\n\nIt malicious user provides a small pptable through sysfs and then\na bigger pptable, it may cause buffer overflow attack in function\nsmu_sys_set_pp_table()."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: evitar el desbordamiento de b\u00fafer adjunto en smu_sys_set_pp_table() Si un usuario malintencionado proporciona una pptable peque\u00f1a a trav\u00e9s de sysfs y luego una pptable m\u00e1s grande, puede provocar un ataque de desbordamiento de b\u00fafer en la funci\u00f3n smu_sys_set_pp_table()."
          }
        ],
        "id": "CVE-2025-21780",
        "lastModified": "2026-07-14T13:17:23.560",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2025-21780",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:30:25.628048Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2025-02-27T03:15:18.827",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3484ea33157bc7334f57e64826ec5a4bf992151a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Mailing List",
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/e43a8b9c4d700ffec819c5043a48769b3e7d9cab"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-120"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-120"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-09-13T07:36:14+00:00",
      "cve": "CVE-2025-21780",
      "id": "CVE-2025-21780",
      "initial_release_date": "2025-02-27T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21780.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-19T02:10:14Z",
      "cve": "CVE-2025-21780",
      "id": "CVE-2025-21780",
      "initial_release_date": "2025-02-28T02:20:54Z",
      "product_status:known_affected": "374",
      "product_status:known_not_affected": "257",
      "product_status:recommended": "662",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-21780",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21780.json",
      "version": "59"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2025-11-03T20:59:26.137Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              },
              {
                "defaultStatus": "unknown",
                "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "V3.1.6",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-09-08T08:40:35.828Z",
              "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
              "shortName": "siemens-SADP"
            },
            "references": [
              {
                "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
              }
            ],
            "x_adpType": "supplier"
          },
          {
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2025-21780",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-10-01T19:30:25.628048Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-120",
                    "description": "CWE-120 Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-10-01T16:56:11.282Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "3484ea33157bc7334f57e64826ec5a4bf992151a",
                  "status": "affected",
                  "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                  "versionType": "git"
                },
                {
                  "lessThan": "e43a8b9c4d700ffec819c5043a48769b3e7d9cab",
                  "status": "affected",
                  "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                  "versionType": "git"
                },
                {
                  "lessThan": "2498d2db1d35e88a2060ea191ae75dce853dd084",
                  "status": "affected",
                  "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                  "versionType": "git"
                },
                {
                  "lessThan": "231075c5a8ea54f34b7c4794687baa980814e6de",
                  "status": "affected",
                  "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                  "versionType": "git"
                },
                {
                  "lessThan": "1abb2648698bf10783d2236a6b4a7ca5e8021699",
                  "status": "affected",
                  "version": "137d63abbf6a0859e79b662e81d21170ecb75e59",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.2"
                },
                {
                  "lessThan": "5.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.129",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.79",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.16",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.13.*",
                  "status": "unaffected",
                  "version": "6.13.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.14",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.129",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.79",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.16",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.13.4",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.14",
                      "versionStartIncluding": "5.2",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()\n\nIt malicious user provides a small pptable through sysfs and then\na bigger pptable, it may cause buffer overflow attack in function\nsmu_sys_set_pp_table()."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:L - The vulnerability is reached exclusively by writing to the local sysfs attribute /sys/class/drm/cardN/device/pp_table; there is no remote or adjacent-network path to smu_sys_set_pp_table().\nAC:L - Triggering is fully deterministic \u2014 write a tiny pptable whose 16-bit usStructureSize matches the write length, then write a larger one; there is no race, no ASLR dependency, and the attacker chooses both the allocation size and the overflow length/content.\nPR:L - The attribute is 0644 by default, but on AMD desktop/handheld/gaming deployments the amdgpu pp_* power-tuning nodes are routinely made group-writable via udev rules so unprivileged GUI overclocking tools can use them, and the fix\u0027s own changelog describes the attacker as a \"malicious user\"; per the choose-higher rule this is scored as an unprivileged local user rather than init-namespace root.\nUI:N - The attacker performs two ordinary write() calls on their own; no victim action, mount, or file-open by another user is involved.\nS:U - The heap corruption occurs in the kernel\u0027s own slab allocator and is confined to the kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Beyond the write primitive, the stale power_play_table_size makes amdgpu_get_pp_table() memcpy up to PAGE_SIZE-1 bytes out of a 1-byte allocation straight back to userspace, directly disclosing ~4 KB of adjacent kernel heap; the overflow itself also enables arbitrary read via corrupted adjacent objects.\nI:H - This is an out-of-bounds heap write of up to ~4 KB with fully attacker-chosen contents starting from a kmalloc-8 object, smashing many adjacent slab objects \u2014 a classic primitive for function-pointer/credential overwrite and privilege escalation.\nA:H - Overwriting kilobytes of adjacent slab objects and freelist metadata reliably produces slab corruption panics/oopses, and smu_reset() is then invoked with the corrupted power-play table, hanging or wedging the GPU."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:54:22.764Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/3484ea33157bc7334f57e64826ec5a4bf992151a"
            },
            {
              "url": "https://git.kernel.org/stable/c/e43a8b9c4d700ffec819c5043a48769b3e7d9cab"
            },
            {
              "url": "https://git.kernel.org/stable/c/2498d2db1d35e88a2060ea191ae75dce853dd084"
            },
            {
              "url": "https://git.kernel.org/stable/c/231075c5a8ea54f34b7c4794687baa980814e6de"
            },
            {
              "url": "https://git.kernel.org/stable/c/1abb2648698bf10783d2236a6b4a7ca5e8021699"
            }
          ],
          "title": "drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2025-21780",
        "datePublished": "2025-02-27T02:18:23.543Z",
        "dateReserved": "2024-12-29T08:45:45.764Z",
        "dateUpdated": "2026-09-08T08:40:35.828Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.