Medium severity6.5NVD Advisory· Published Sep 15, 2026· Updated Sep 24, 2026
CVE-2026-91952
CVE-2026-91952
Description
FreeRDP versions before 3.31.0 contain an infinite-loop denial of service in the pool_decode_rect function when decoding AVC444 metablocks with more region rectangles than preallocated worker array size. A malicious RDP server can send crafted AVC444 graphics updates causing the threaded decode path to loop indefinitely, consuming CPU and preventing normal client operation.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2Patches
Vulnerability mechanics
References
2- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m85m-3qxv-63h5nvdExploitMitigationVendor Advisory
- www.vulncheck.com/advisories/freerdp-before-3.31.0-denial-of-service-via-pool-decode-rectnvdThird Party Advisory
News mentions
1- FreeRDP: 20 Vulnerabilities Disclosed, Including Critical RDSTLS BypassVypr Intelligence · Sep 15, 2026