CVE Explorer

CVE-2026-43406

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in process_message_header() If the message frame is (maliciously) corrupted in a way that the length of the control segment ends up being less than the size of the message header or a different frame is made to look like a message frame, out-of-bounds reads may ensue in process_message_header(). Perform an explicit bounds check before decoding the message header.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:279af22599b621d63128235baf2f0ffc0f8d98b69baaf4d5b3e5860c9b94d518

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":["net/ceph/messenger_v2.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.11"},{"lessThan":"5.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessTha…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ceph/messenger_v2.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"76ccf21a12c5f6d6790bc32c7da82446d877b2f4","status":"affected","version":"cd1a677cad994021b19665ed476aea63f5d54f31","versionType":"git"},{"lessThan":"75582aaa580c11aed4c7731cad6b068b700e7efb","status":"affected","version":"cd1a677cad994021b19665ed476aea63f5d54f31","versionType":"git"},{"lessThan":"50156622eb0888e62541d715a98584480a1bc7cb","status":"affected","version":"cd1a677cad994021b19665…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/affected/0

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/affected/1

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":9.1,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/metrics/0/cvssV3_1

Source references

7 source assertions

{"url":"https://git.kernel.org/stable/c/035867ae6f18df0aeedb2a57a5b74091bd4e3fe8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/5

{"url":"https://git.kernel.org/stable/c/50156622eb0888e62541d715a98584480a1bc7cb"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/2

{"url":"https://git.kernel.org/stable/c/69fb5d91bba44ecf7eb80530b85fa4fb028921d5"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/6

{"url":"https://git.kernel.org/stable/c/69fe5af33fa3806f398d21c081d73c66e5523bc2"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/4

{"url":"https://git.kernel.org/stable/c/75582aaa580c11aed4c7731cad6b068b700e7efb"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/76ccf21a12c5f6d6790bc32c7da82446d877b2f4"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/dbd857a9e1e33ea71eaf3e211877027e533770d1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:777d0b45dec00ae0496d6004eb680d4d8fe9fd57b34a288fc41df8d6499ba934 · sha256:8bad19c9b2419e8e… · /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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