CVE-2026-58095

ppp(8): incorrect length calculation in mp_Enddisc()

State: Published
Severity: 8.8 High
Published: Aug 26, 2026
Updated: Aug 27, 2026
Reserved: Jun 29, 2026

Description

mp_Enddisc() used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer.

A malicious PPP peer can crash ppp(8) or potentially execute arbitrary code as root.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-122 Heap-based Buffer Overflow

Affected Products

Product	Versions
FreeBSDFreeBSD	15.1-RELEASE to before p3Affected 15.0-RELEASE to before p13Affected 14.4-RELEASE to before p9Affected

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.ascvendor-advisory

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