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CVE-2026-33987

HIGH CVSS 3.1: 6.6 EPSS 0.01%
Updated Apr 01, 2026
Freerdp
Parameter Value
CVSS 6.6 (HIGH)
Affected Versions before 3.24.2
Fixed In 3.24.2
Type CWE-122 (Heap-based Buffer Overflow), CWE-131
Vendor Freerdp
Public PoC No

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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Freerdp Freerdp
cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
3.24.2