{"id":"CVE-2026-121397","title":"FreeRDP before 3.32.2 Heap Over-Read via WinPR save_png_to_buffer()","summary":"FreeRDP before 3.32.2 contains a heap buffer over-read vulnerability in save_png_to_buffer() that allows malicious RDP servers to leak client memory by sending 16 bpp DIB clipboard data. Attackers can offer a CF_DIB BI_BITFIELDS image th…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cvssSource":"cna","cwe":["CWE-125"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP < 3.32.2"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T16:06:14.108610Z"},"exploitAvailable":true,"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T16:06:40.356Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121397","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-x7w3-32ch-x2jq","label":"GitHub Security Advisory (GHSA-x7w3-32ch-x2jq)"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-over-read-via-winpr-save-png-to-buffer","label":"VulnCheck Advisory: FreeRDP before 3.32.2 Heap Over-Read via WinPR save_png_to_buffer()"}],"tags":["cve.org","exploit-available"],"epss":0.0027,"epssPercentile":0.19326,"ingestedAt":"2026-11-05T20:33:06.277Z","slug":"CVE-2026-121397","body":"## Overview\n\nFreeRDP before 3.32.2 contains a heap buffer over-read vulnerability in save_png_to_buffer() that allows malicious RDP servers to leak client memory by sending 16 bpp DIB clipboard data. Attackers can offer a CF_DIB BI_BITFIELDS image that, when converted to PNG for a local application, embeds client heap bytes into the clipboard image.\n\n## Affected\n\n- `FreeRDP < 3.32.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}