CVE-2026-109256: freerdp freerdp

CVSS 6.5 (medium) · published 2026-10-12

FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR png_write_data callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CF_DIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash.

Affected products (NVD): freerdp freerdp

Fixed in (NVD): 3.32.2

Weakness: CWE-122

Source: NVD CVE-2026-109256

References

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5
• https://www.vulncheck.com/advisories/freerdp-3.10.0-through-3.32.2-heap-buffer-overflow-in-winpr-png-conversion
• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wf3x-658c-52m5

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