Security Resilience

CVE-2023-6534

Freebsd 12.4 … 14.0

Published
13 December 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0074 54th percentile
Risk Priority 59 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-6534 is a high-severity an unspecified weakness vulnerability in Freebsd Freebsd. Its CVSS base score is 7.5 (High).

Operationally, ranked in the top 46% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf(4) packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against hosts behind the…

more

firewall.

CWE(s)
NVD-CWE-noinfo

Related Threats

CVEs Like This One

CVE-2026-58082Same product: Freebsd Freebsd
CVE-2026-3038Same product: Freebsd Freebsd
CVE-2026-42512Same product: Freebsd Freebsd
CVE-2026-49427Same product: Freebsd Freebsd
CVE-2026-49420Same product: Freebsd Freebsd
CVE-2026-6386Same product: Freebsd Freebsd
CVE-2026-7270Same product: Freebsd Freebsd
CVE-2026-42511Same product: Freebsd Freebsd
CVE-2024-6760Same product: Freebsd Freebsd
CVE-2026-49416Same product: Freebsd Freebsd

Affected Assets

freebsd
freebsd
12.4, 13.2, 14.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References