| Name | CVE-2026-23948 |
| Description | FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.22.0, a NULL pointer dereference vulnerability in rdp_write_logon_info_v2() allows a malicious RDP server to crash FreeRDP proxy by sending a specially crafted LogonInfoV2 PDU with cbDomain=0 or cbUserName=0. This vulnerability is fixed in 3.22.0. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| freerdp2 (PTS) | bullseye | 2.3.0+dfsg1-2+deb11u1 | vulnerable |
| bullseye (security) | 2.3.0+dfsg1-2+deb11u3 | vulnerable | |
| bookworm | 2.11.7+dfsg1-6~deb12u1 | vulnerable | |
| freerdp3 (PTS) | trixie | 3.15.0+dfsg-2.1 | vulnerable |
| forky, sid | 3.22.0+dfsg-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| freerdp2 | source | (unstable) | (unfixed) | |||
| freerdp3 | source | (unstable) | 3.22.0+dfsg-1 |
[trixie] - freerdp3 <no-dsa> (Minor issue)
[bookworm] - freerdp2 <no-dsa> (Minor issue)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6f3c-qvqq-2px5
Fixed by: https://github.com/FreeRDP/FreeRDP/commit/4d44e3c097656a8b9ec696353647b0888ca45860 (3.22.0)