Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-91956] Denial of Service via out-of-bounds read in URBDRC channel

This medium-severity Red Hat Linux advisory covers CVE-2026-91956; related products: Red Hat Enterprise Linux 10.

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

CVE-2026-91956 Source published Sep 15, 2026Source updated Sep 15, 2026

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

CVE-2026-91956

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Summary

Denial of Service via out-of-bounds read in URBDRC channel. 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, users should avoid connecting to untrusted or unverified RDP servers. Restricting FreeRDP client connections to known, trusted RDP servers can prevent exploitation of this vulnerability.

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

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