What is CVE-2022-32264?

CVE-2022-32264 is a high-severity vulnerability in FreeBSD, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2022-09-06.

How severe is CVE-2022-32264?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in FreeBSD

CVE-2022-32264

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

Published 2022-09-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.008 · change: +0.001

Affected products

FreeBSD

Weakness classification (CWE)

CWE-755 — Improper Handling of Exceptional Conditions

References

jvn.jp/en/jp/JVN20930118/ (Third Party Advisory)
cgit.freebsd.org/src/commit/ (Patch, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2022-32264?: CVE-2022-32264 is a high-severity vulnerability in FreeBSD, classified under Improper Handling of Exceptional Conditions. CVSS score: 7.5/10. Published 2022-09-06.
How severe is CVE-2022-32264?: High severity. CVSS v3 base score is 7.5 out of 10.