Heap-based Buffer Overflow Affecting libwinpr package, versions <2:3.10.3-12.el10_2.6


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.15% (4th percentile)

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  • Snyk IDSNYK-ORACLE10-LIBWINPR-16657808
  • published14 May 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-33987  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade Oracle:10 libwinpr to version 2:3.10.3-12.el10_2.6 or higher.
This issue was patched in ELSA-2026-19142.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwinpr package and not the libwinpr package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, in persistent_cache_read_entry_v3() in libfreerdp/cache/persistent.c, persistent->bmpSize is updated before winpr_aligned_recalloc(). If realloc fails, bmpSize is inflated while bmpData points to the old buffer. This issue has been patched in version 3.24.2.

CVSS Base Scores

version 3.1