CVE-2026-80875 Affecting perf6.12-debuginfo package, versions <1:6.12.100-125.179.amzn2023
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2023-PERF612DEBUGINFO-19811312
- published15 Sept 2026
- disclosed4 Sept 2026
Introduced: 4 Sep 2026
NewCVE-2026-80875 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 perf6.12-debuginfo to version 1:6.12.100-125.179.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2057.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf6.12-debuginfo package and not the perf6.12-debuginfo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
ipvs: use parsed transport offset in TCP state lookup
TCP state handling reparses the skb to find the TCP header. For IPv6 it uses sizeof(struct ipv6hdr), while the surrounding IPVS code already parsed the packet with ip_vs_fill_iph_skb() and has the real transport-header offset in iph.len.
This makes TCP state handling look at the wrong bytes when an IPv6 packet carries extension headers. Use the parsed transport offset passed down from ip_vs_set_state() when reading the TCP header.
For IPv4 and for IPv6 packets without extension headers, the passed offset matches the previous value.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-80875
- https://git.kernel.org/stable/c/2500fa3958b1ba51c2b065e39db1b04dfa7e23a2
- https://git.kernel.org/stable/c/2d06e0897ce18228d199887f0823b431d841dd03
- https://git.kernel.org/stable/c/5848e914b85e360a2dd9d19c00a72e2ea9617dd0
- https://git.kernel.org/stable/c/816efb7fc0aeae986e63ac73b428dd97a4ef69f5
- https://git.kernel.org/stable/c/c2ee845e292c278fac75bf28d96bc892607fd5c4
- https://git.kernel.org/stable/c/d45f73c274435703e8d7bc9d8b742a5d9111ab6e
- https://git.kernel.org/stable/c/d73f4249776dd970ad65a69cfc51613dd8a034bb
- https://git.kernel.org/stable/c/f6f550f26562d191c30b2818e7925dcb1c7f166c