What is CVE-2026-29774?

CVE-2026-29774 is a medium-severity vulnerability in Freerdp, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2026-03-13.

How severe is CVE-2026-29774?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Buffer overflow in Freerdp

CVE-2026-29774

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap buffer overflow occurs in the FreeRDP client's AVC420/AVC444 YUV-to-RGB conversion path due to missing horizontal bounds validation of H.2…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (27.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Freerdp — versions < 3.24.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5q35-hv9x-7794 (x_refsource_CONFIRM)
https://github.com/FreeRDP/FreeRDP/commit/6482b7a92fff3959582cef052d1967ad6bde3738 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-29774?: CVE-2026-29774 is a medium-severity vulnerability in Freerdp, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2026-03-13.
How severe is CVE-2026-29774?: Medium severity. CVSS v3 base score is 5.3 out of 10.