CVE-2026-31617 (GCVE-0-2026-31617)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:42 – Updated: 2026-06-30 12:07
VLAI
Title
usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb() The block_len read from the host-supplied NTB header is checked against ntb_max but has no lower bound. When block_len is smaller than opts->ndp_size, the bounds check of: ndp_index > (block_len - opts->ndp_size) will underflow producing a huge unsigned value that ndp_index can never exceed, defeating the check entirely. The same underflow occurs in the datagram index checks against block_len - opts->dpe_size. With those checks neutered, a malicious USB host can choose ndp_index and datagram offsets that point past the actual transfer, and the skb_put_data() copies adjacent kernel memory into the network skb. Fix this by rejecting block lengths that cannot hold at least the NTB header plus one NDP. This will make block_len - opts->ndp_size and block_len - opts->dpe_size both well-defined. Commit 8d2b1a1ec9f5 ("CDC-NCM: avoid overflow in sanity checking") fixed a related class of issues on the host side of NCM.
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 068a7f2749fff6462a0a908ec415b885fe430f50 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 1425655c2870054c3ab4712e2b6dbdd331597ada (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 0f156bb5334e588034ca68ac2ee92b23f66e56e7 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 8757a2593631443648218244b9788e193ae0fdc1 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 6762f8a95772265dd0c2ffe7f400493f3115b135 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < d58ba8f6546232f8414f396c189297dbee03f1a7 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 74908b0318d1df1188457040b8714ff4d4b68126 (git)
Affected: 2b74b0a04d3e9f9f08ff026e5663dce88ff94e52 , < 8f993d30b95dc9557a8a96ceca11abed674c8acb (git)
Affected: f7e0611e207d8908c4f2858e244370529a76dbf7 (git)
Affected: b88ad6e714284b33a47834f5f2a294c2b37c66aa (git)
Affected: 471b23586387a32857778c511be60ab31c98dcfd (git)
Affected: 4f529c4d1e436230d3af7c09a3239677a14d2b46 (git)
Affected: ae6a5394d9fbe118bc95cfe376d6a9d91d7547e8 (git)
Affected: 4.9.235 , < 4.10 (semver)
Affected: 4.14.196 , < 4.15 (semver)
Affected: 4.19.143 , < 4.20 (semver)
Affected: 5.4.62 , < 5.5 (semver)
Affected: 5.8.6 , < 5.9 (semver)
Create a notification for this product.
Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.136 , ≤ 6.6.* (semver)
Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0.1 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10     cpe:/o:redhat:enterprise_linux:10
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
 Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
 Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:10"
            ],
            "defaultStatus": "affected",
            "product": "Red Hat Enterprise Linux 10",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 6",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 7",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:8"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 8",
            "vendor": "Red Hat"
          },
          {
            "cpes": [
              "cpe:/o:redhat:enterprise_linux:9"
            ],
            "defaultStatus": "unaffected",
            "product": "Red Hat Enterprise Linux 9",
            "vendor": "Red Hat"
          }
        ],
        "datePublic": "2026-04-24T00:00:00.000Z",
        "descriptions": [
          {
            "lang": "en",
            "value": "A flaw was found in the Linux kernel\u0027s USB Network Control Model (NCM) gadget driver. A malicious USB host could exploit an integer underflow vulnerability when processing Network Transfer Block (NTB) headers. This allows the host to manipulate internal data pointers, causing adjacent kernel memory to be copied into network buffers. This issue can lead to information disclosure from the kernel."
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "namespace": "https://access.redhat.com/security/updates/classification/",
                "value": "Important"
              },
              "type": "Red Hat severity rating"
            }
          },
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "format": "CVSS"
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-191",
                "description": "Integer Underflow (Wrap or Wraparound)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-30T12:07:49.338Z",
          "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
          "shortName": "redhat-SADP"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2026-31617"
          },
          {
            "name": "RHBZ#2461448",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461448"
          },
          {
            "tags": [
              "x_sadp-csaf-vex"
            ],
            "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31617.json"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-04-24T00:00:00.000Z",
            "value": "Reported to Red Hat."
          },
          {
            "lang": "en",
            "time": "2026-04-24T00:00:00.000Z",
            "value": "Made public."
          }
        ],
        "title": "kernel: usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()",
        "x_adpType": "supplier",
        "x_generator": {
          "engine": "sadp-cli 1.0.0"
        }
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/function/f_ncm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "068a7f2749fff6462a0a908ec415b885fe430f50",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "1425655c2870054c3ab4712e2b6dbdd331597ada",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "0f156bb5334e588034ca68ac2ee92b23f66e56e7",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "8757a2593631443648218244b9788e193ae0fdc1",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "6762f8a95772265dd0c2ffe7f400493f3115b135",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "d58ba8f6546232f8414f396c189297dbee03f1a7",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "74908b0318d1df1188457040b8714ff4d4b68126",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "lessThan": "8f993d30b95dc9557a8a96ceca11abed674c8acb",
              "status": "affected",
              "version": "2b74b0a04d3e9f9f08ff026e5663dce88ff94e52",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "f7e0611e207d8908c4f2858e244370529a76dbf7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b88ad6e714284b33a47834f5f2a294c2b37c66aa",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "471b23586387a32857778c511be60ab31c98dcfd",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4f529c4d1e436230d3af7c09a3239677a14d2b46",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ae6a5394d9fbe118bc95cfe376d6a9d91d7547e8",
              "versionType": "git"
            },
            {
              "lessThan": "4.10",
              "status": "affected",
              "version": "4.9.235",
              "versionType": "semver"
            },
            {
              "lessThan": "4.15",
              "status": "affected",
              "version": "4.14.196",
              "versionType": "semver"
            },
            {
              "lessThan": "4.20",
              "status": "affected",
              "version": "4.19.143",
              "versionType": "semver"
            },
            {
              "lessThan": "5.5",
              "status": "affected",
              "version": "5.4.62",
              "versionType": "semver"
            },
            {
              "lessThan": "5.9",
              "status": "affected",
              "version": "5.8.6",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/usb/gadget/function/f_ncm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "lessThan": "5.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.136",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.83",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.209",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.175",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.136",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.83",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.24",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.14",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.1",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "5.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.9.235",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.14.196",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "4.19.143",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.4.62",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.8.6",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()\n\nThe block_len read from the host-supplied NTB header is checked against\nntb_max but has no lower bound. When block_len is smaller than\nopts-\u003endp_size, the bounds check of:\n\tndp_index \u003e (block_len - opts-\u003endp_size)\nwill underflow producing a huge unsigned value that ndp_index can never\nexceed, defeating the check entirely.\n\nThe same underflow occurs in the datagram index checks against block_len\n- opts-\u003edpe_size.  With those checks neutered, a malicious USB host can\nchoose ndp_index and datagram offsets that point past the actual\ntransfer, and the skb_put_data() copies adjacent kernel memory into the\nnetwork skb.\n\nFix this by rejecting block lengths that cannot hold at least the NTB\nheader plus one NDP.  This will make block_len - opts-\u003endp_size and\nblock_len - opts-\u003edpe_size both well-defined.\n\nCommit 8d2b1a1ec9f5 (\"CDC-NCM: avoid overflow in sanity checking\") fixed\na related class of issues on the host side of NCM."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:43:02.575Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/068a7f2749fff6462a0a908ec415b885fe430f50"
        },
        {
          "url": "https://git.kernel.org/stable/c/1425655c2870054c3ab4712e2b6dbdd331597ada"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f156bb5334e588034ca68ac2ee92b23f66e56e7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8757a2593631443648218244b9788e193ae0fdc1"
        },
        {
          "url": "https://git.kernel.org/stable/c/6762f8a95772265dd0c2ffe7f400493f3115b135"
        },
        {
          "url": "https://git.kernel.org/stable/c/d58ba8f6546232f8414f396c189297dbee03f1a7"
        },
        {
          "url": "https://git.kernel.org/stable/c/74908b0318d1df1188457040b8714ff4d4b68126"
        },
        {
          "url": "https://git.kernel.org/stable/c/8f993d30b95dc9557a8a96ceca11abed674c8acb"
        }
      ],
      "title": "usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31617",
    "datePublished": "2026-04-24T14:42:36.191Z",
    "dateReserved": "2026-03-09T15:48:24.123Z",
    "dateUpdated": "2026-06-30T12:07:49.338Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-31617",
      "date": "2026-06-30",
      "epss": "0.00129",
      "percentile": "0.0288"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-31617\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-04-24T15:16:40.973\",\"lastModified\":\"2026-06-30T03:18:25.960\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nusb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()\\n\\nThe block_len read from the host-supplied NTB header is checked against\\nntb_max but has no lower bound. When block_len is smaller than\\nopts-\u003endp_size, the bounds check of:\\n\\tndp_index \u003e (block_len - opts-\u003endp_size)\\nwill underflow producing a huge unsigned value that ndp_index can never\\nexceed, defeating the check entirely.\\n\\nThe same underflow occurs in the datagram index checks against block_len\\n- opts-\u003edpe_size.  With those checks neutered, a malicious USB host can\\nchoose ndp_index and datagram offsets that point past the actual\\ntransfer, and the skb_put_data() copies adjacent kernel memory into the\\nnetwork skb.\\n\\nFix this by rejecting block lengths that cannot hold at least the NTB\\nheader plus one NDP.  This will make block_len - opts-\u003endp_size and\\nblock_len - opts-\u003edpe_size both well-defined.\\n\\nCommit 8d2b1a1ec9f5 (\\\"CDC-NCM: avoid overflow in sanity checking\\\") fixed\\na related class of issues on the host side of NCM.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/usb/gadget/function/f_ncm.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"068a7f2749fff6462a0a908ec415b885fe430f50\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"1425655c2870054c3ab4712e2b6dbdd331597ada\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"0f156bb5334e588034ca68ac2ee92b23f66e56e7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"8757a2593631443648218244b9788e193ae0fdc1\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"6762f8a95772265dd0c2ffe7f400493f3115b135\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"d58ba8f6546232f8414f396c189297dbee03f1a7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"74908b0318d1df1188457040b8714ff4d4b68126\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"2b74b0a04d3e9f9f08ff026e5663dce88ff94e52\",\"lessThan\":\"8f993d30b95dc9557a8a96ceca11abed674c8acb\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"f7e0611e207d8908c4f2858e244370529a76dbf7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b88ad6e714284b33a47834f5f2a294c2b37c66aa\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"471b23586387a32857778c511be60ab31c98dcfd\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4f529c4d1e436230d3af7c09a3239677a14d2b46\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"ae6a5394d9fbe118bc95cfe376d6a9d91d7547e8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4.9.235\",\"lessThan\":\"4.10\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.14.196\",\"lessThan\":\"4.15\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"4.19.143\",\"lessThan\":\"4.20\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.62\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.8.6\",\"lessThan\":\"5.9\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/usb/gadget/function/f_ncm.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.9\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.9\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.258\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.209\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.175\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.136\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.83\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.24\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.14\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.1\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 10\",\"defaultStatus\":\"affected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:10\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 6\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 7\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:7\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 9\",\"defaultStatus\":\"unaffected\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:9\"]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-191\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.9\",\"versionEndExcluding\":\"6.6.136\",\"matchCriteriaId\":\"5F07F4AC-C44A-486A-9422-D8975351BA25\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.12\",\"versionEndExcluding\":\"6.12.83\",\"matchCriteriaId\":\"A8BAD957-8E20-401C-A129-DFF3655CA0B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.24\",\"matchCriteriaId\":\"8126B8B8-6D0B-4443-86C1-672AEE893555\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.14\",\"matchCriteriaId\":\"D6A8A074-BBF4-4803-ABED-519A839435BB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.0\",\"versionEndExcluding\":\"7.0.1\",\"matchCriteriaId\":\"9B5888AB-7403-4335-89E4-21CC0B48366A\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/068a7f2749fff6462a0a908ec415b885fe430f50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0f156bb5334e588034ca68ac2ee92b23f66e56e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1425655c2870054c3ab4712e2b6dbdd331597ada\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6762f8a95772265dd0c2ffe7f400493f3115b135\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/74908b0318d1df1188457040b8714ff4d4b68126\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8757a2593631443648218244b9788e193ae0fdc1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8b3b7bd3c02f98634baaf36c7fc7ac915f6517ca\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8f993d30b95dc9557a8a96ceca11abed674c8acb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d58ba8f6546232f8414f396c189297dbee03f1a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-31617\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2461448\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31617.json\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"}]}}"
  }
}


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.