CVE-2026-33982: FreeRDP: Persistent Cache Allocator Mismatch - Heap OOB Read

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-30 · updated 2026-06-17
Weakness: CWE-125

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.2, there is a heap-buffer-overflow READ vulnerability at 24 bytes before the allocation, in winpr_aligned_offset_recalloc(). This issue has been patched in version 3.24.2.

Affected products

FreeRDP: before 3.24.2 — fixed in 3.24.2

How to fix

Upgrade to a fixed version: FreeRDP 3.24.2. Check the vendor advisory for mitigations.

References

https://github.com/FreeRDP/FreeRDP/commit/a48dbde2c8a5b8b70a9d1c045d969a71afd6284c
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8jm9-2925-g4v2

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