HIGH 7.1 NVD
CVE-2026-91952
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 rect
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.
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-m85m-3qxv-63h5
- https://www.vulncheck.com/advisories/freerdp-before-3.31.0-denial-of-service-via-pool-deco
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-15 via NVD.
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