{"cve":"CVE-2026-91946","nvd":{"published":"2026-09-15T16:17:47.990","modified":"2026-09-24T12:14:07.923","status":"Analyzed","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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-908"],"references":["https://github.com/FreeRDP/FreeRDP/commit/483c9388119f06bac420d92053cff9ef94e83bea","https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xj","https://www.vulncheck.com/advisories/freerdp-before-3.31.0-information-disclosure-via-rdpgfx-resetgraphics","https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-r7jx-j9h7-j4xj"],"products":["freerdp:freerdp"],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-91946","score":0.00529,"percentile":0.44762,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}