CVE-2026-53088 (GCVE-0-2026-53088)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-08-05 12:33
VLAI
Title
net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 14e9f86564fff7bcf7f45c1b69080e837b31d185 (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 85f34ec320d3881badfd4edc5fee5cd5012bb54d (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 2a74590170427a3ca7cc4bb8690cdd559129c29c (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 29394f722f620281f2ee9a47f947734e53d72c90 (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 4cab761fc51c65aef741fcece4a18f3554edbc09 (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 72df896e31ddd06fcc5a789f025ad7a62a18bc9b (git)
Affected: 876dbadd53a7102e2a84afc84ea2bd3ee6dc5636 , < 57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38 (git)
Affected: 3bdf77194ea822390b405639b77659071fd2c2e9 (git)
Affected: 3.16.50 , < 3.17 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.141 , ≤ 6.6.* (semver)
Unaffected: 6.12.91 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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                    "matchCriteriaId": "44295B9F-B686-4BD8-8C59-26CB590557B9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:4.13:rc6:*:*:*:*:*:*",
                    "matchCriteriaId": "BBAEC1E0-FD67-4750-9816-975321F3EF01",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:4.13:rc7:*:*:*:*:*:*",
                    "matchCriteriaId": "142B57DF-C83F-45A1-A296-70863DDA1539",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmgenet: fix off-by-one in bcmgenet_put_txcb\n\nThe write_ptr points to the next open tx_cb. We want to return the\ntx_cb that gets rewinded, so we must rewind the pointer first then\nreturn the tx_cb that it points to. That way the txcb can be correctly\ncleaned up."
          }
        ],
        "id": "CVE-2026-53088",
        "lastModified": "2026-07-23T18:35:25.270",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-06-24T17:17:22.980",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/14e9f86564fff7bcf7f45c1b69080e837b31d185"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/29394f722f620281f2ee9a47f947734e53d72c90"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2a74590170427a3ca7cc4bb8690cdd559129c29c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4cab761fc51c65aef741fcece4a18f3554edbc09"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/72df896e31ddd06fcc5a789f025ad7a62a18bc9b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/85f34ec320d3881badfd4edc5fee5cd5012bb54d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-193"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-05T14:37:04+00:00",
      "cve": "CVE-2026-53088",
      "id": "CVE-2026-53088",
      "initial_release_date": "2026-06-24T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53088.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-10T16:58:35Z",
      "cve": "CVE-2026-53088",
      "id": "CVE-2026-53088",
      "initial_release_date": "2026-06-26T02:12:48Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "726",
      "product_status:known_not_affected": "6",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53088",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53088.json",
      "version": "11"
    }
  }
}



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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.