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Back to active CVEs
High · CVSS 8.8CVE-2026-46198

batman-adv: fix integer overflow on buff_posCVE-2026-46198

Answer in brief

CVE-2026-46198 records a High severity (CVSS 8.8) vulnerability in batman-adv: fix integer overflow on buff_pos. The current sources do not mark it as known exploited. The current feed maps 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 May 28, 2026Updated Aug 5, 2026Source checked Nov 4, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 4, 2026
References
8 linked sources
Open source record

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. 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). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <867cd090760e8f5cd206f387b47ff9c56fac04e9 || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <10bb1f366d884d506c38a947b43026a75d1afe9a || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <96c9c0ed9a9579a9085765aceaa4556a6666eb82 || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <f61499359fa529f0d45a53bf7c573a49eb6322e6 || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <974542d1efc48b7e9fe16184e647615cba39969b || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <bf872db54f91ffe70104b98c20068b2d5910e018 || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <b252797bfced986d6d92ec2f4cfcca842ce8aa78 || >=c6c8fea29769d998d94fcec9b9f14d4b52b349d3 <0799e5943611006b346b8813c7daf7dd5aa26bfd867cd090760e8f5cd206f387b47ff9c56fac04e9, 10bb1f366d884d506c38a947b43026a75d1afe9a, 96c9c0ed9a9579a9085765aceaa4556a6666eb82, f61499359fa529f0d45a53bf7c573a49eb6322e6, 974542d1efc48b7e9fe16184e647615cba39969b, bf872db54f91ffe70104b98c20068b2d5910e018, b252797bfced986d6d92ec2f4cfcca842ce8aa78, 0799e5943611006b346b8813c7daf7dd5aa26bfd
Linux/Linuxgeneric2.6.38Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 867cd090760e8f5cd206f387b47ff9c56fac04e9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 28, 2026

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

  2. Source modified

    Aug 5, 2026

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

  3. First seen by HOL

    Aug 5, 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: batman-adv: fix integer overflow on buff_pos Fixing an integer overflow present in batadv_iv_ogm_send_to_if. The size check is done using the int type in batadv_iv_ogm_aggr_packet whereas the buff_pos variable uses the s16 type. This could lead to an out-of-bound read.

Quoted source text, attributed separately from HOL analysis.