PT-2026-3455 · Freerdp+3 · Freerdp+3
Ehdgks0627
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Published
2026-01-01
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Updated
2026-03-18
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CVE-2026-23530
CVSS v3.1
9.8
Critical
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
FreeRDP versions prior to 3.21.0
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. The
freerdp bitmap decompress planar function does not properly validate the nSrcWidth and nSrcHeight parameters against planar->maxWidth and maxHeight before performing RLE decode. This can lead to a heap buffer overflow on the client-side if a malicious server provides crafted data. This overflow can cause a denial of service (DoS) and potentially allow for code execution, depending on the heap allocator and its surrounding layout. The vulnerable parameters are nSrcWidth and nSrcHeight.Recommendations
Update to version 3.21.0 or later.
Exploit
Fix
DoS
Heap Based Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Freerdp
Linuxmint
Rocky Linux
Ubuntu