{"id":"CVE-2026-111881","title":"FreeRDP 3.14.1 before 3.32.0 Integer Underflow in BMP Writer via Clipboard","summary":"FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H","cvssSource":"cna","cwe":["CWE-191"],"vendor":"FreeRDP","product":"FreeRDP","affected":["FreeRDP >= 3.14.1 < 3.32.0"],"published":"2026-10-17","updated":"2026-10-17","sourceUpdated":"2026-10-17T18:46:09.069Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111881","references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-27m7-gwhh-6hhf","label":"GitHub Security Advisory (GHSA-27m7-gwhh-6hhf)"},{"url":"https://www.vulncheck.com/advisories/freerdp-3.14.1-before-3.32.0-integer-underflow-in-bmp-writer-via-clipboard","label":"VulnCheck Advisory: FreeRDP 3.14.1 before 3.32.0 Integer Underflow in BMP Writer via Clipboard"}],"tags":["cve.org"],"ingestedAt":"2026-10-17T19:08:56.962Z","slug":"CVE-2026-111881","body":"## Overview\n\nFreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.\n\n## Affected\n\n- `FreeRDP >= 3.14.1 < 3.32.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}