What is CVE-2026-26271?

CVE-2026-26271 is a medium-severity vulnerability in Freerdp, classified under Buffer Over-read. CVSS score: 5.3/10. Published 2026-02-25.

How severe is CVE-2026-26271?

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

Vulnerability in Freerdp

CVE-2026-26271

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, a buffer overread in `freerdp_image_copy_from_icon_data()` (libfreerdp/codec/color.c) can be triggered by crafted RDP Window Icon (TS_ICON_INFO) data. The bug is reachable over the network when a client processes icon data from an RDP server (or from a man-in-the-middle). Version 3.23.0 fixes the issue.

EPSS: 0.002 (15.5th 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 < 3.23.0

Weakness classification (CWE)

CWE-126 — Buffer Over-read

References

security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-26271?: CVE-2026-26271 is a medium-severity vulnerability in Freerdp, classified under Buffer Over-read. CVSS score: 5.3/10. Published 2026-02-25.
How severe is CVE-2026-26271?: Medium severity. CVSS v3 base score is 5.3 out of 10.