CVE-2026-109943CWE-415

CVE-2026-109943

Medium · published October 13, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
18.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00270 · 18.1th percentile
Weakness
CWE-415 · Double Free
Published
2026-10-13T18:17Z
References (2)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-pg3f-chj4-mrw6 · [email protected]https://www.vulncheck.com/advisories/freerdp-3.29.0-before-3.32.0-double-free-via-async-update-polygon-order · [email protected]
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 13:27Z
    FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order
    cvelistv5
  • 13 OCT 13:27Z
    FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order
    cvelistv5