CVE-2026-88964

NameCVE-2026-88964
DescriptionAn integer underflow in OpenVPN version 2.7_alpha3 through 2.7.7 on Windows and Android allows remote authenticated servers to cause a denial of service or memory disclosure via crafted domain search options
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
openvpn (PTS)bookworm, bookworm (security)2.6.14-0+deb12u2vulnerable
trixie (security), trixie2.6.14-1+deb13u3vulnerable
forky, sid2.7.8-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openvpnsource(unstable)2.7.8-1

Notes

Fixed by: https://github.com/OpenVPN/openvpn/commit/d586f8ad9bfc582cc7984fcd482dc7cfacc940e2 (v2.7.8)
Search for package or bug name: Reporting problems