CVE-2026-25952
FreeRDP has heap-use-after-free in xf_SetWindowMinMaxInfo
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.23.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: yes
- Technical impact: partial
Summary
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_SetWindowMinMaxInfo` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window` in `xf_rail_server_min_max_info` returns an unprotected pointer from the `railWindows` hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- FreeRDP FreeRDP
fixed in 3.23.0
References 11
GitHub · FreeRDP/FreeRDP
- Advisory GHSA-cgqm-cwjg-7w9x
- Commit 1994e984
- client/X11/xf_rail.c · L1167
- client/X11/xf_rail.c · L1174
- client/X11/xf_rail.c · L1178
- client/X11/xf_rail.c · L1230-L1238
- client/X11/xf_rail.c · L643
- client/X11/xf_window.c · L1111
- client/X11/xf_window.c · L1128
- client/X11/xf_window.c · L1394
- client/X11/xf_window.c · L1428