CVE-2026-75883

Name	CVE-2026-75883
Description	A flaw was found in pppd. A remote attacker could exploit a buffer overflow vulnerability in the PEAP response handling. By sending a specially crafted PEAP Request packet, an attacker could cause the pppd process to corrupt global static data, leading to incorrect behavior or a system crash.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1148816

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ppp (PTS)	bookworm	2.4.9-1+1.1	fixed
	trixie	2.5.2-1+1	vulnerable
	forky, sid	2.5.5-1+1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Debian Bugs
ppp	source	experimental	2.5.5-1+1~exp1
ppp	source	bookworm	(not affected)
ppp	source	(unstable)	2.5.5-1+1	1148816

Notes

[trixie] - ppp <no-dsa> (Minor issue)
[bookworm] - ppp <not-affected> (PEAP support introduced in 2.5.0)
https://github.com/ppp-project/ppp/security/advisories/GHSA-rwr9-4vx8-vc35