CVE-2026-109255: freerdp freerdp

CVSS 6.8 (medium) · published 2026-10-12

FreeRDP 3.0.0 before 3.32.0 contains an integer truncation vulnerability in license_check_stream_length that allows a malicious RDP server to trigger a heap buffer overflow on 32-bit clients. Attackers can send a crafted SERVER_LICENSE_REQUEST with a large scopeCount that bypasses length checks, causing out-of-bounds writes leading to denial of service or remote code execution.

Affected products (NVD): freerdp freerdp

Fixed in (NVD): 3.32.0

Weakness: CWE-122

Source: NVD CVE-2026-109255

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hxw3-57rq-3v4m
• https://www.vulncheck.com/advisories/freerdp-3.0.0-before-3.32.0-heap-buffer-overflow-via-license-check-stream-length
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hxw3-57rq-3v4m

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