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Back to active CVEs
High · CVSS 7.1CVE-2026-81007

ipmi: ipmb: validate write message lengthCVE-2026-81007

Answer in brief

CVE-2026-81007 records a High severity (CVSS 7.1) vulnerability in ipmi: ipmb: validate write message length. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Oct 19, 2026Source checked Oct 27, 2026First seen by HOL Sep 11, 2026Material review Oct 19, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 27, 2026
References
8 linked sources
Open source record

Key facts

Risk
High · CVSS 7.1
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=51bd6f291583684f495ea498984dfc22049d7fd2 <60939bcda6f3f104ef456fdbf3cc5733c0720fb1 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <5719431ca2b5fa26560bb38f6202f8b97fa3bbb0 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <a84c6e3d188f2c6e674910929eb790634299d6d5 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <53637506884dbd5c91a89b1a3547d99d80f8ed2c60939bcda6f3f104ef456fdbf3cc5733c0720fb1, 5719431ca2b5fa26560bb38f6202f8b97fa3bbb0, a84c6e3d188f2c6e674910929eb790634299d6d5, 53637506884dbd5c91a89b1a3547d99d80f8ed2c
Linux/Linuxgeneric5.3Not reported
Linux/Linuxgeneric>=51bd6f291583684f495ea498984dfc22049d7fd2 <8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <94f8d20153e348c79bc14dc25f873470518892da || >=51bd6f291583684f495ea498984dfc22049d7fd2 <e527cd4e80066e1ed070fdc7c705bde340cdcc62 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <7d66d54b974cff0a959e188af844d2d110422767 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <60939bcda6f3f104ef456fdbf3cc5733c0720fb1 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <5719431ca2b5fa26560bb38f6202f8b97fa3bbb0 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <a84c6e3d188f2c6e674910929eb790634299d6d5 || >=51bd6f291583684f495ea498984dfc22049d7fd2 <53637506884dbd5c91a89b1a3547d99d80f8ed2c8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89, 94f8d20153e348c79bc14dc25f873470518892da, e527cd4e80066e1ed070fdc7c705bde340cdcc62, 7d66d54b974cff0a959e188af844d2d110422767, 60939bcda6f3f104ef456fdbf3cc5733c0720fb1, 5719431ca2b5fa26560bb38f6202f8b97fa3bbb0, a84c6e3d188f2c6e674910929eb790634299d6d5, 53637506884dbd5c91a89b1a3547d99d80f8ed2c

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 60939bcda6f3f104ef456fdbf3cc5733c0720fb1; Linux/Linux to 8990c7f6bfc1e7689b7012a7d4d0efb9f07a9c89 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 11, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 11, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ipmi: ipmb: validate write message length ipmb_write() read message fields before validating the length byte. A zero or short write can read uninitialized stack bytes. A length smaller than the SMBus header underflows the block write length. Require a non-empty buffer and the minimum IPMB request length. Also require the length byte plus payload before parsing the message.

Quoted source text, attributed separately from HOL analysis.