9.1

CVE-2026-57158: freerdp Out-of-bounds Read

CVSS: 9.1v3.1CriticalModified
AliasesUBUNTU-CVE-2026-57158DEBIAN-CVE-2026-57158
Published 10-07-2026Last modified 14-07-2026
Open JSON

Vulnerability summary

CVE-2026-57158 is a critical (CVSS 9.1) Out-of-bounds Read vulnerability in freerdp. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.9% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (NVD)
EPSS score
0.69%
0%100%
Low · +0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
OPENSUSE-SU-2026:11263-1SUSE-SU-2026:3562-1USN-8561-1

Timeline

  1. 10-07-2026
    PublishedVulnerability first disclosed.
  2. 14-07-2026
    Last modifiedVulnerability information updated.

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. From 3.21.0 before 3.28.0, FreeRDP clients using the GFX pipeline contain an incomplete fix for CVE-2026-23530 in planar_decompress_plane_rle_only in libfreerdp/codec/planar.c, allowing a malicious RDP server to send a truncated RDPGFX_CMDID_WIRETOSURFACE_1 planar payload that reads one byte past the input buffer. This issue is fixed in version 3.28.0.

CVSS metrics

6 scores · 4 sources · 2 versions

EPSS trend

Probability

0.69%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

+0.23 pp

From 0.46% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.69%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Freerdp

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Ubuntu3 products
  • freerdpAll versions (No fix recorded)
  • freerdp2All versions (No fix recorded)
  • freerdp3< 3.30.0+dfsg-0ubuntu0.24.04.1 | All versions (No fix recorded) | < 3.30.0+dfsg-0ubuntu0.26.04.1
Debian2 products
  • freerdp2All versions (No fix recorded)
  • freerdp3All versions (No fix recorded) | < 3.28.0+dfsg-1
Freerdp1 product

3 vendors · 6 products

References

8 links