CVE-2026-46198
Linux kernel batman-adv overflow leads to out-of-bounds read
Is CVE-2026-46198 being exploited?
Not confirmed. CVE-2026-46198 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.28% probability of exploitation in the next 30 days.
How severe is CVE-2026-46198?
CVE-2026-46198 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-46198?
Yes. A fix has been recorded for CVE-2026-46198. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-46198 affect?
CVE-2026-46198 affects Linux kernel / batman-adv. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-46198?
Upgrade to patched kernel version
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Out-of-bounds read in batman-adv could crash the kernel or leak memory.
Patch when possible
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < 867cd090760e8f5cd206f387b47ff9c56fac04e9
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < 10bb1f366d884d506c38a947b43026a75d1afe9a
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < 96c9c0ed9a9579a9085765aceaa4556a6666eb82
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < f61499359fa529f0d45a53bf7c573a49eb6322e6
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < 974542d1efc48b7e9fe16184e647615cba39969b
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < bf872db54f91ffe70104b98c20068b2d5910e018
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < b252797bfced986d6d92ec2f4cfcca842ce8aa78
- affected>= c6c8fea29769d998d94fcec9b9f14d4b52b349d3 and < 0799e5943611006b346b8813c7daf7dd5aa26bfd
- affected2.6.38
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.