CVE-2026-53149 (GCVE-0-2026-53149)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38
VLAI
Title
thunderbolt: Bound root directory content to block size
Summary
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Bound root directory content to block size __tb_property_parse_dir() does not check that content_offset + content_len fits within block_len for the root directory case. When rootdir->length equals or exceeds block_len - 2, the entry loop reads past the allocated property block. Add a bounds check after computing content_offset and content_len to reject directories whose content extends past the block.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 5c7657d38d07268124782f03519f07c22a5814fb (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < b212bc161d8a9937b42153723a4a3f2f74fab528 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 1912be23daf4afc8d24ce916021ab68ca4c679db (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 4d0b1524caadb04c10a71f3f88692c63dcb39115 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 0a32040a48db8cf35de48b85d6115df5623e4964 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 60ba6217460792356a238299edd675d91d46bab4 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < cbeb68cbaa0a6f979ef428a7f2d0268c082ba166 (git)
Affected: cdae7c07e3e3509eaabc18c1640a55dc5b99c179 , < 65423079c7420e3dbf9a7aa345c243a3f5752e5d (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4d0b1524caadb04c10a71f3f88692c63dcb39115"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/5c7657d38d07268124782f03519f07c22a5814fb"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/60ba6217460792356a238299edd675d91d46bab4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/65423079c7420e3dbf9a7aa345c243a3f5752e5d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b212bc161d8a9937b42153723a4a3f2f74fab528"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/cbeb68cbaa0a6f979ef428a7f2d0268c082ba166"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-06T19:38:07+00:00",
      "cve": "CVE-2026-53149",
      "id": "CVE-2026-53149",
      "initial_release_date": "2026-06-25T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: thunderbolt: Bound root directory content to block size",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53149.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-16T00:11:28Z",
      "cve": "CVE-2026-53149",
      "id": "CVE-2026-53149",
      "initial_release_date": "2026-06-26T02:12:07Z",
      "product_status:first_fixed": "25",
      "product_status:known_affected": "643",
      "product_status:known_not_affected": "23",
      "product_status:recommended": "273",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53149",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53149.json",
      "version": "12"
    }
  }
}



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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.



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.