CVE-2026-31897 — Out-of-bounds Read in Freerdp

CWE-125 — Out-of-bounds Read6 documents6 sources
Severity
9.1CRITICALNVD
EPSS
0.0%
top 88.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Freerdp
Timeline
PublishedMar 13

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, there is an out-of-bounds read in freerdp_bitmap_decompress_planar when SrcSize is 0. The function dereferences *srcp (which points to pSrcData) without first verifying that SrcSize >= 1. When SrcSize is 0 and pSrcData is non-NULL, this reads one byte past the end of the source buffer. This vulnerability is fixed in 3.24.0.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitability: 3.9 | Impact: 5.2

Affected Packages2 packages

▶CVEListV5freerdp/freerdp< 3.24.0
▶NVDfreerdp/freerdp< 3.24.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
OSV
CVE-2026-31897: FreeRDP is a free implementation of the Remote Desktop Protocol↗2026-03-13
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CVEList
FreeRDP has an out-of-bounds read in `freerdp_bitmap_decompress_planar`↗2026-03-13
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📋Vendor Advisories

2
Red Hat
freerdp: FreeRDP has an out-of-bounds read in `freerdp_bitmap_decompress_planar`↗2026-03-13
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Debian
CVE-2026-31897: freerdp2 - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-31897 Impact, Exploitability, and Mitigation Steps | Wiz↗
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