CVE-2026-111382

8.8

FreeRDP Out-of-Bounds Write Vulnerability

CVSS: 8.8, high high CVSS v3.1
EPSS, next 30 days: 0.3% higher than 20.4% of scored CVEs
Exploitation: No public evidence
Published: 16 Oct 2026yesterday

Description

FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface height to write past U/V planes, enabling heap corruption and potential code execution.

Details

Vendor: FreeRDP
Product: FreeRDP
Weakness: CWE-787 (opens in a new tab)
Status: Received
Updated: 16 Oct 2026
Assigner: disclosure@vulncheck.com

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

References 2

Advisories 1

github.com /FreeRDP/FreeRDP/security/advisories/GHSA-f4pf-pgp4-f2r3 (opens in a new tab)

Other references 1

vulncheck.com /advisories/freerdp-before-3.32.0-heap-out-of-bounds-write-in-avc444-yuv444-combine (opens in a new tab)

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-2026-111378 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-2026-110837 FreeRDP Heap-based Buffer Overflow Vulnerability EPSS 0.3% 7.1, high
CVE-2026-110838 FreeRDP Missing Authentication for Critical Function Vulnerability EPSS 0.3% 7.5, high
CVE-2026-110839 FreeRDP Out-of-Bounds Write Vulnerability EPSS 0.2% 7.1, high
CVE-2026-109676 FreeRDP Use-After-Free Vulnerability EPSS 0.3% 8.8, high

Beyond this page

Is CVE-2026-111382 in your network?

This page tells you how dangerous CVE-2026-111382 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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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 17 Oct 2026, not the live upstream state.