| Name | CVE-2025-21311 |
| Description | Windows NTLM V1 Elevation of Privilege Vulnerability |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, 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 Package | Release | Version | Status |
|---|
| squid (PTS) | bullseye | 4.13-10+deb11u3 | vulnerable |
| bullseye (security) | 4.13-10+deb11u4 | vulnerable |
| bookworm, bookworm (security) | 5.7-2+deb12u2 | vulnerable |
| trixie | 6.13-2 | vulnerable |
| sid | 7.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| squid | source | (unstable) | 7.1-1 | | | |
Notes
[bookworm] - squid <no-dsa> (Minor issue)
[bullseye] - squid <postponed> (Minor issue, generic deprecation of NTLMv1 auth)
7.1 removes the ntlm_smb_lm_auth module