{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"FreeRDP/FreeRDP","product":"FreeRDP","source":"CNA: VulnCheck","vendor":"FreeRDP","versions":[{"lessThan":"3.33.0","status":"affected","version":"0","versionType":"semver"}]}],"cveId":"CVE-2026-125394","cwes":["CWE-416"],"description":"FreeRDP before 3.33.0 contains a heap use-after-free vulnerability in update_gdi_patblt(), update_gdi_polygon_cb() and update_gdi_mem3blt() that retain stale brush cache pointers. A malicious RDP server can resend CACHE_BRUSH to the same slot then send PATBLT, causing clients to read freed heap memory, disclosing data or crashing.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},{"score":5.4,"severity":"medium","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","version":"3.1"}],"modifiedAt":1794266878697,"publishedAt":1794266878697,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fw6x-h8gw-778w"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/FreeRDP/FreeRDP/commit/ffc6b976e3589b768e8e279bc61dfb7b5896e832"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/FreeRDP/FreeRDP/releases/tag/3.33.0"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/FreeRDP/FreeRDP/blob/3.32.2/libfreerdp/cache/brush.c#L80"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/freerdp-before-3.33.0-use-after-free-via-stale-brush-cache-pointer"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/FreeRDP/FreeRDP/commit/ffc6b976e3589b768e8e279bc61dfb7b5896e832"}],"revision":"ed2f54f6752ec981ec84a4c4fd4d8b5cb38c4a0e626d18afc4c9963f0c5058eb","sources":[{"modifiedAt":1794266878697,"name":"CNA: VulnCheck","retrievedAt":1794269360440,"url":"https://www.cve.org/CVERecord?id=CVE-2026-125394"}],"ssvc":null,"status":"published","title":"FreeRDP before 3.33.0 Use-After-Free via Stale Brush Cache Pointer","updatedAt":1794269360440}