CVE-2022-32264

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-09-06 · updated 2026-06-17
Weakness: CWE-755

Description

sys/netinet/tcp_timer.h in FreeBSD before 7.0 contains a denial-of-service (DoS) vulnerability due to improper handling of TSopt on TCP connections. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Affected products

FreeBSD: before 7.0 — fixed in 7.0

How to fix

Upgrade to a fixed version: FreeBSD 7.0. Check the vendor advisory for mitigations.

References

http://jvn.jp/en/jp/JVN20930118/
https://cgit.freebsd.org/src/commit/?id=4dc630cdd2f7a790604d2724ecb19c6aa95130a7
http://jvn.jp/en/jp/JVN20930118/
https://cgit.freebsd.org/src/commit/?id=4dc630cdd2f7a790604d2724ecb19c6aa95130a7

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