5.5

CVE-2026-26271: freerdp Buffer Over-read

CVSS: 5.5v4.0MediumAnalyzed
AliasesUBUNTU-CVE-2026-26271DEBIAN-CVE-2026-26271
Published 25-02-2026Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2026-26271 is a medium (CVSS 5.5) Buffer Over-read vulnerability in freerdp. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.25%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 8
MGASA-2026-0086OPENSUSE-SU-2026:10408-1OPENSUSE-SU-2026:10459-1SUSE-SU-2026:1129-1SUSE-SU-2026:1160-1SUSE-SU-2026:1164-1

Timeline

  1. 25-02-2026
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

+0.01 pp

From 0.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu3 products
  • freerdpAll versions (No fix recorded)
  • freerdp2All versions (No fix recorded)
  • freerdp3< 3.5.1+dfsg1-0ubuntu1.4 | < 3.16.0+dfsg-2ubuntu0.3
Debian2 products
  • freerdp2All versions (No fix recorded)
  • freerdp3< 3.15.0+dfsg-2.1+deb13u1 | < 3.23.0+dfsg-1
Freerdp1 product

3 vendors · 6 products

References

6 links