Unrated severityNVD Advisory· Published Feb 9, 2026· Updated Feb 10, 2026
FreeRDP has a NULL Pointer Dereference in rdp_write_logon_info_v2()
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- osv-coords8 versionspkg:rpm/almalinux/freerdppkg:rpm/almalinux/freerdp-develpkg:rpm/almalinux/freerdp-libspkg:rpm/almalinux/freerdp-serverpkg:rpm/almalinux/libwinprpkg:rpm/almalinux/libwinpr-develpkg:rpm/opensuse/freerdp&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/freerdp&distro=openSUSE%20Tumbleweed
< 2:2.11.7-1.el9_7.5+ 7 more
- (no CPE)range: < 2:2.11.7-1.el9_7.5
- (no CPE)range: < 2:2.11.7-1.el9_7.5
- (no CPE)range: < 2:2.11.7-1.el9_7.5
- (no CPE)range: < 2:3.10.3-5.el10_1.5
- (no CPE)range: < 2:2.11.7-1.el9_7.5
- (no CPE)range: < 2:2.11.7-1.el9_7.5
- (no CPE)range: < 3.22.0-160000.1.1
- (no CPE)range: < 3.22.0-1.1
Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/commit/4d44e3c097656a8b9ec696353647b0888ca45860mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6f3c-qvqq-2px5mitrex_refsource_CONFIRM
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