CVE Explorer

CVE-2026-64448

In the Linux kernel, the following vulnerability has been resolved: smb: client: restrict implied bcc[0] exemption to responses without data area smb2_check_message() has a long-standing quirk that accepts a response whose calculated length is one byte larger than the bytes actually received ("server can return one byte more due to implied bcc[0]"). This was introduced to accommodate servers that omit the trailing bcc[0] overlap byte when no data area is present. However, the exemption is app

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a03080e1097d71d79a01e2074e8403b60ec0830bcc6d83633650df7c544b0dde

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/client/smb2misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8d0bbc78046d264bbf6a574ea6f9072258a43e35","status":"affected","version":"093b2bdad3221e3fae3c26d89387e7297a157664","versionType":"git"},{"lessThan":"b6a381c01e2ac98a48e32ac0f2a45bbadd9e26b0","status":"affected","version":"093b2bdad3221e3fae3c26d89387e7297a157664","versionType":"git"},{"lessThan":"31c6312608c60b72a1feb99a5afb680645a3e8a3","status":"affected","version":"093b2bdad3221e3fae3c2…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/client/smb2misc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.6"},{"lessThan":"3.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessTh…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions

{"url":"https://git.kernel.org/stable/c/31c6312608c60b72a1feb99a5afb680645a3e8a3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/419ec1b604d7fb60c10aec2dc062371f9fcd4940"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/53b7c271f06be4dd5cfc8c6ef552a8355c891a7f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/7

{"url":"https://git.kernel.org/stable/c/573e502d14714d2947e22e7eff40ec20a6a44a42"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/6e9d10f62773b99bd927940fd9cbdfe7207e23ff"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/8d0bbc78046d264bbf6a574ea6f9072258a43e35"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/b6a381c01e2ac98a48e32ac0f2a45bbadd9e26b0"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/ceb875a375dedbf51c9425c1d13a2d7a8435c08c"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:336f4922dbdea995bdeb7e7989bd1a4cee5a49bb778464acb484b2f87aab939e · sha256:dc540038509ca7c3… · /containers/cna/references/5

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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