CVE-2026-91946
MEDIUMCVSS 6.5Description
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.
Timeline
Published:September 15th, 2026 4:17 PM
Last modified:September 24th, 2026 12:14 PM
CVSS Scoring
CVSS v3: 6.5 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Software
From NVD CPE configuration data
Vendors
freerdp
Products
freerdp
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- https://github.com/FreeRDP/FreeRDP/commit/483c9388119f06bac420d92053cff9ef94e83beaPatch
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xjVendor Advisory
- https://www.vulncheck.com/advisories/freerdp-before-3.31.0-information-disclosure-via-rdpgfx-resetgraphicsPatch
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xjVendor Advisory
Source: NIST NVD · Data may lag official sources by up to one minute