Heap-based Buffer Overflow Affecting winpr-devel package, versions <3.10.3-150700.3.17.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.51% (41st percentile)

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  • Snyk IDSNYK-SLES157-WINPRDEVEL-18673424
  • published12 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-44421  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 winpr-devel to version 3.10.3-150700.3.17.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream winpr-devel package and not the winpr-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdi_CacheToSurface: it validates a destination rectangle that is clamped to UINT16_MAX, but then performs the copy using the original cacheEntry->width/height. This can cause a large out-of-bounds heap write and may lead to client crashes or code execution. This bug is reachable from a malicious RDP server, but only when the client has RDPGFX enabled. This vulnerability is fixed in 3.26.0.

CVSS Base Scores

version 3.1