Medium severity6.5NVD Advisory· Published Sep 15, 2026· Updated Sep 24, 2026
CVE-2026-91950
CVE-2026-91950
Description
FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdr_dump_packet function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet with computerNameLen set to 0xFFFFFFF0 to bypass bounds checks and trigger memory reads past the packet buffer, causing client crashes or heap disclosure in logs.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
8- osv-coords6 versionspkg:rpm/almalinux/freerdppkg:rpm/almalinux/freerdp-develpkg:rpm/almalinux/freerdp-libspkg:rpm/almalinux/freerdp-serverpkg:rpm/almalinux/libwinprpkg:rpm/almalinux/libwinpr-devel
< 2:3.10.3-12.el10_2.14+ 5 more
- (no CPE)range: < 2:3.10.3-12.el10_2.14
- (no CPE)range: < 2:3.10.3-12.el10_2.14
- (no CPE)range: < 2:3.10.3-12.el10_2.14
- (no CPE)range: < 2:3.10.3-12.el10_2.14
- (no CPE)range: < 2:3.10.3-12.el10_2.14
- (no CPE)range: < 2:3.10.3-12.el10_2.14
Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c5gr-hmqp-pwj4nvdExploitMitigationVendor Advisory
- www.vulncheck.com/advisories/freerdp-before-3.31.0-out-of-bounds-read-via-uint32-wraparoundnvdThird Party Advisory
News mentions
1- FreeRDP: 20 Vulnerabilities Disclosed, Including Critical RDSTLS BypassVypr Intelligence · Sep 15, 2026