MEDIUM

CVE-2026-91952

2026-09-15 CVSS v3.1

CVSS

6.5

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.

Weakness (CWE)

CWE-835 Infinite Loop

EPSS Score

0.35%

Probability of exploitation in next 30 days

28.2th percentile

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-decode-rect

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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