CVE-2026-119053

NameCVE-2026-119053
DescriptionlwIP 2.0.0 through 2.2.1 built with the SNMP agent contains an out-of-bounds read vulnerability in snmp_pbuf_stream_writeto() that bounds copies by pbuf->len instead of remaining bytes. Remote unauthenticated attackers knowing the read community can send fragmented SNMP requests to receive adjacent receive-buffer or pool memory echoed in responses.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lwip (PTS)bookworm2.1.3+dfsg1-2vulnerable
trixie2.2.1+dfsg1-1+deb13u1vulnerable
forky, sid2.2.1+dfsg1-9vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lwipsource(unstable)(unfixed)unimportant

Notes

Fixed by: https://cgit.git.savannah.gnu.org/cgit/lwip.git/commit/?id=e98415014aca66ef0daefded8020763b9279a3b2
src/app/snmp code not built in Debian binary packages

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