HIGH 8.7 NVD
CVE-2026-121958
FreeRDP through 3.32.1 has a heap out-of-bounds write in the RDPGFX client because the delete_surface callback truncates surface hash keys to 16 bits, leaving t
FreeRDP through 3.32.1 has a heap out-of-bounds write in the RDPGFX client because the delete_surface callback truncates surface hash keys to 16 bits, leaving the surface table inconsistent so HashTable_GetKeys writes past its allocated key array. A malicious or man-in-the-middle RDP server can exploit this by creating surfaceId 0xFFFF, closing the RDPGFX channel, sending repeated DELETESURFACE PDUs, and then sending ENDFRAME or RESETGRAPHICS.
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m59q-wm7v-mp57
- https://www.vulncheck.com/advisories/freerdp-through-3.32.1-heap-out-of-bounds-write-via-r
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m59q-wm7v-mp57
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-04 via NVD.
vulnfeed aggregates 18258 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.