CVE Explorer

CVE-2026-31717

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate owner of durable handle on reconnect Currently, ksmbd does not verify if the user attempting to reconnect to a durable handle is the same user who originally opened the file. This allows any authenticated user to hijack an orphaned durable handle by predicting or brute-forcing the persistent ID. According to MS-SMB2, the server MUST verify that the SecurityContext of the reconnect request matches the SecurityC

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:df6df393005fcc9fe57999f1b4ac3caf1ed733342b7b61d1b86dbabc443a4b8b

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/server/mgmt/user_session.c","fs/smb/server/oplock.c","fs/smb/server/oplock.h","fs/smb/server/smb2pdu.c","fs/smb/server/vfs_cache.c","fs/smb/server/vfs_cache.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"712cdf917e77a6444ce3836874829d770db20ee6","status":"affected","version":"8df4bcdb0a4232192b2445256c39b787d58ef14d","versionType":"git"},{"lessThan":"c7f0f0d01c88bdcb8b1694d7d321670013f7ed7d","status":"affected","version":"c8efcc786146a951091588e5fa7e3…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/mgmt/user_session.c","fs/smb/server/oplock.c","fs/smb/server/oplock.h","fs/smb/server/smb2pdu.c","fs/smb/server/vfs_cache.c","fs/smb/server/vfs_cache.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.142","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","versio…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/affected/0

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/00ce8d6789dae72d042a4522264964c72891ca37"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/49110a8ce654bbe56bef7c5e44cce31f4b102b8a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/712cdf917e77a6444ce3836874829d770db20ee6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/c7f0f0d01c88bdcb8b1694d7d321670013f7ed7d"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/c908c853f304a4969b5aa10eba0b50350cc65b80"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:eb9303325ae067974e0a21fd68d6a19f265db64211a4f9038b6deddb5a279583 · sha256:23d53853bec92132… · /containers/cna/references/3

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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