CVE-2026-111373

7.5

FreeRDP NULL Pointer Dereference Vulnerability

CVSS: 7.5, high high CVSS v3.1
EPSS, next 30 days: 0.2% higher than 14.9% of scored CVEs
Exploitation: No public evidence
Published: 16 Oct 20265 days ago

Description

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.

Details

Vendor: FreeRDP
Product: FreeRDP
Weakness: CWE-476 (opens in a new tab)
Status: Analyzed
Updated: 20 Oct 2026
Assigner: disclosure@vulncheck.com

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

References 2

Advisories 2

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other FreeRDP CVEs

Every FreeRDP CVE we hold

Same vendor in what we hold, not a known link between the flaws.

CVE-2026-114045 FreeRDP Heap-based Buffer Overflow Vulnerability 8.8, high
CVE-2026-111880 FreeRDP Out-of-Bounds Write Vulnerability EPSS 0.3% 7.4, high
CVE-2026-111881 FreeRDP Integer Underflow Vulnerability EPSS 0.2% 7.6, high
CVE-2026-111378 FreeRDP Uncontrolled Resource Consumption Vulnerability EPSS 0.3% 7.5, high
CVE-2026-111379 FreeRDP Heap-based Buffer Overflow Vulnerability EPSS 0.1% 7.3, high
CVE-2026-111380 FreeRDP Integer Overflow Vulnerability EPSS 0.3% 8.8, high
CVE-2026-111381 FreeRDP Heap-based Buffer Overflow Vulnerability EPSS 0.1% 7.3, high
CVE-2026-111382 FreeRDP Out-of-Bounds Write Vulnerability EPSS 0.3% 8.8, high

Beyond this page

Is CVE-2026-111373 in your network?

This page tells you how dangerous CVE-2026-111373 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 21 Oct 2026, not the live upstream state.