{"id":"CVE-2026-112279","summary":"rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_bmpcache2","details":"rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_bmpcache2() in orders.c that allows malicious RDP servers to crash clients via crafted revision-2 bitmap cache orders. Attackers can send an uncompressed order with large width/height or an underflowing mode nibble and short payload, causing memcpy() reads past the receive buffer and denial of service.","modified":"2026-10-21T02:55:54.501072975Z","published":"2026-10-19T13:55:24.937Z","database_specific":{"cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112279.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112279.json"},{"type":"PACKAGE","url":"https://github.com/rdesktop/rdesktop"},{"type":"ARTICLE","url":"https://github.com/rdesktop/rdesktop/blob/v1.9.0/orders.c"},{"type":"REPORT","url":"https://github.com/rdesktop/rdesktop/issues/436"},{"type":"FIX","url":"https://github.com/rdesktop/rdesktop/pull/437"},{"type":"ADVISORY","url":"https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-read"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112279"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-bmpcache2"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/rdesktop/rdesktop","events":[{"introduced":"0"},{"last_affected":"50f607ee610bf34e03540e6c04c5b102a49b2ed5"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"1.9.0"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}}],"versions":["v1.9.0-beta","v1.9.0","v1.8.3","v1.8.2","v1.8.1","v1.8.0","v1.7.1","v1.7.0","v1.6.0","v1.5.0","v1.4.1","v1.4.0","v1.3.1","v1.3.0","v1.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112279.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:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}