CVE Explorer

CVE-2026-23427

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in durable v2 replay of active file handles parse_durable_handle_context() unconditionally assigns dh_info->fp->conn to the current connection when handling a DURABLE_REQ_V2 context with SMB2_FLAGS_REPLAY_OPERATION. ksmbd_lookup_fd_cguid() does not filter by fp->conn, so it returns file handles that are already actively connected. The unconditional overwrite replaces fp->conn, and when the overwriting

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9746b8982415fe9a44a30e63997beaab35df0593621c19531754fd876d587332

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/smb/server/smb2pdu.c"],"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":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanO…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/smb/server/smb2pdu.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b0158d9d6f4ec5941e49a0b812735db2844f9975","status":"affected","version":"8df4bcdb0a4232192b2445256c39b787d58ef14d","versionType":"git"},{"lessThan":"568a25fd7bcdfb2790f7d42aa2a440dca4435c96","status":"affected","version":"c8efcc786146a951091588e5fa7e3c754850cb3c","versionType":"git"},{"lessThan":"a5828c14a9e3d5eeed0bcc0a58f0f3fbca0cdcb2","status":"affected","version":"c8efcc786146a951091588…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions

{"url":"https://git.kernel.org/stable/c/568a25fd7bcdfb2790f7d42aa2a440dca4435c96"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/9b0792c3eacf01e67f356d6ef9707b0ae5022419"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/references/3

{"url":"https://git.kernel.org/stable/c/a5828c14a9e3d5eeed0bcc0a58f0f3fbca0cdcb2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/b0158d9d6f4ec5941e49a0b812735db2844f9975"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/b425e4d0eb321a1116ddbf39636333181675d8f4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:3c9373e6ae4e2ac86511e4dc4d26b05f1ace9c2b0946962353049ae4f0ab1097 · sha256:cbb596dc5b74972b… · /containers/cna/references/4

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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