CVE-2026-111373CWE-476

CVE-2026-111373

Medium · published October 16, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
19.2
In the wild
Unconfirmed
What it is

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to websocket_reply_close, triggering an assertion failure that terminates the client process and causes denial of service.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00278 · 19.2th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-10-16T07:18Z
Affected products (1)
ProductVersionsFixed in
freerdp/freerdp< 3.32.03.32.0
References (2)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-83g2-gf92-5c4g · [email protected]https://www.vulncheck.com/advisories/freerdp-before-3.32.0-null-dereference-via-zero-length-websocket-ping · [email protected]
EPSS history
Timeline
  • 17 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 16 OCT 01:17Z
    FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping
    cvelistv5
  • 16 OCT 01:17Z
    FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping
    cvelistv5