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CVE-2026-43350

In the Linux kernel, the following vulnerability has been resolved: smb: client: require a full NFS mode SID before reading mode bits parse_dacl() treats an ACE SID matching sid_unix_NFS_mode as an NFS mode SID and reads sid.sub_auth[2] to recover the mode bits. That assumes the ACE carries three subauthorities, but compare_sids() only compares min(a, b) subauthorities. A malicious server can return an ACE with num_subauth = 2 and sub_auth[] = {88, 3}, which still matches sid_unix_NFS_mode a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9979561d8d61353f3e3fe134c2a47715b1bb12b3ee8d613485ea27f03958801c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.4"},{"lessThan":"5.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"23b54d6cc3ef30a51d984dc74364f24039ae2ecb","status":"affected","version":"e2f8fbfb8d09c06decde162090fac3ee220aa280","versionType":"git"},{"lessThan":"1592a6cd6f653f2d24572a6976c7a775b19f4940","status":"affected","version":"e2f8fbfb8d09c06decde162090fac3ee220aa280","versionType":"git"},{"lessThan":"8bd4cad3f458d11650d51c2d24b03fb1770ae6cc","status":"affected","version":"e2f8fbfb8d09c06decde16…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.4"},{"lessThan":"5.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/cifsacl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"23b54d6cc3ef30a51d984dc74364f24039ae2ecb","status":"affected","version":"e2f8fbfb8d09c06decde162090fac3ee220aa280","versionType":"git"},{"lessThan":"1592a6cd6f653f2d24572a6976c7a775b19f4940","status":"affected","version":"e2f8fbfb8d09c06decde162090fac3ee220aa280","versionType":"git"},{"lessThan":"8bd4cad3f458d11650d51c2d24b03fb1770ae6cc","status":"affected","version":"e2f8fbfb8d09c06decde16…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.6,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/1592a6cd6f653f2d24572a6976c7a775b19f4940"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/23b54d6cc3ef30a51d984dc74364f24039ae2ecb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/2757ad3e4b6f9e0fed4c7739594e702abc5cab21"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/38a69f08ee82c450d3e4168707fff2e317dc3ff7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/8bd4cad3f458d11650d51c2d24b03fb1770ae6cc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b53b8e98c23310294fc45fc686db5ee860311896"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/c8eef12af1cc73031639ea7cf16e0b10e2536b0b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/f8488c07bea2431ee12a6067d736578064fa46b4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4a78fd7b09328a1bf0d8ec766a2edc2ade40e1cacfb3a3f1808a536707ce37ba · sha256:6d09c1705f72ccda… · /containers/cna/references/6

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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