{"id":"CVE-2026-111881","summary":"FreeRDP 3.14.1 before 3.32.0 Integer Underflow in BMP Writer via Clipboard","details":"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-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.","aliases":["GHSA-27m7-gwhh-6hhf"],"modified":"2026-10-21T02:55:49.659578309Z","published":"2026-10-17T18:46:09.069Z","database_specific":{"cwe_ids":["CWE-191"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111881.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111881.json"},{"type":"ADVISORY","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-27m7-gwhh-6hhf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111881"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/freerdp-3.14.1-before-3.32.0-integer-underflow-in-bmp-writer-via-clipboard"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freerdp/freerdp","events":[{"introduced":"4019dcd4097d550d02dd6b70ee88b6a1189be26c"},{"fixed":"d27a4f7c1c63b62a5e60e5d939ad116cfb58ffc1"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"3.14.1"},{"fixed":"3.32.0"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111881.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N"}]}