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VULNERABILITIES

CVE-2026-91946 Details

Description

FreeRDP versions before 3.31.0 contain an information disclosure vulnerability in the RDPGFX server's ResetGraphics PDU serializer that fails to initialize padding bytes in the fixed 340-byte wire format. Attackers can receive uninitialized heap memory including live pointers and GLib function addresses transmitted in the PDU, defeating heap ASLR and disclosing the GLib module base address.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xj CISA-ADPVendor Advisory
https://github.com/FreeRDP/FreeRDP/commit/483c9388119f06bac420d92053cff9ef94e83bea [email protected]Patch
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xj [email protected]Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-before-3.31.0-information-disclosure-via-rdpgfx-resetgraphics [email protected]PatchThird Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-908Use of Uninitialized Resource[email protected]

Affected Products

ProductVersions
freerdp freerdp
>= 2.0.0, < 3.31.0

CPE

  • cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-91946
NVD Published Date:
Sep 15, 2026
NVD Last Modified:
Sep 24, 2026
Source:
[email protected]
CVE-2026-91946 Details - Not Deferred