CVE-2026-58096

High

Description

LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root.

SeverityHigh

CVSS8.8

Exploit probability—

Product

Freebsd

PublishedAug 26, 2026

First seenAug 26, 2026

Weakness typeCWE-130CWE-130 CWE-787Out-of-bounds write

How to fix

Vendor advisories

security.freebsd.org/advisories/FreeBSD-SA-26:60.ppp.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	14.4, 15.0, 15.1	—

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