CVE-2026-109943

MEDIUM 6.5

FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing polygon order followed by a zero-point order to crash a client with +async-update enabled.

CWE	CWE-415
Vendor	freerdp
Product	freerdp
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FreeRDP / FreeRDP

3.29.0 < 3.32.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pg3f-chj4-mrw6 vulncheck.com: https://www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-double-free-via-async-update-polygon-order

Credits

Kushalkhemka opensec-intelligence mayank-jangid-moon skigeek16