This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-91018 →
DEBIAN-CVE-2026-91018
lwIP (Lightweight IP) has a double free vulnerability, which could crash the system, cause a DoS, memory corruption, or allow code execution on the vi...
Original description
The description as published by the source.
lwIP (Lightweight IP) has a double free vulnerability, which could crash the system, cause a DoS, memory corruption, or allow code execution on the victim system.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
lwip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
lwip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
lwip
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.1+dfsg1-8"}]}]
References
- advisory security-tracker.debian.org