CVE-2026-109257CWE-415

CVE-2026-109257

Medium · published October 12, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
23.8
In the wild
Unconfirmed
What it is

FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the server during context teardown.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
8.2 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00321 · 23.8th percentile
Weakness
CWE-415 · Double Free
Published
2026-10-12T21:17Z
References (3)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w · [email protected]https://www.vulncheck.com/advisories/freerdp-before-3.32.0-double-free-via-nscodec-plane-growth-failure · [email protected]https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2hhg-8xx6-v73w · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:04Z
    FreeRDP before 3.32.0 Double Free via NSCodec plane growth failure
    cvelistv5
  • 12 OCT 16:04Z
    FreeRDP before 3.32.0 Double Free via NSCodec plane growth failure
    cvelistv5