Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-91959] Denial of Service due to buffer over-read in RPC gateway

This medium-severity Red Hat Linux advisory covers CVE-2026-91959; related products: Red Hat Enterprise Linux 10.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-91959 Source published Sep 15, 2026Source updated Sep 15, 2026

VulniPulse record published Sep 16, 2026Record updated Oct 5, 2026

CVE-2026-91959

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Summary

Denial of Service due to buffer over-read in RPC gateway. Red Hat rates this moderate (CVSS 6.5).

Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:75570 with package freerdp-2:3.10.3-12.el10_2.14.

Affected product named by the advisory: Red Hat Enterprise Linux 10.

Affected versions

< 3.31.0

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Fixed versions

freerdp-2:3.10.3-12.el10_2.14
RHSA-2026:75570

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To mitigate this issue, restrict network access to any FreeRDP instance operating in a server or gateway role, limiting connections to trusted clients or networks. If FreeRDP is used as a client, avoid connecting to untrusted or malicious RDP servers to prevent exploitation.

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

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