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Malicious or compromised RDP servers can send crafted unaligned RDPEAR payloads, such as CreateApReqAuthenticatorReq messages, to clients using Remote Credential Guard, causing over-reads and potentially crashing the client process.","state":0,"publishedAt":"2026-10-12T16:04:25.502+00:00","modifiedAt":"2026-10-13T15:29:59.005+00:00","affected":[{"ecosystem":"Vendor product","name":"FreeRDP","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FreeRDP\",\n                    \"product\": \"FreeRDP\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.9.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.32.0\"\n                        },\n                        {\n                            \"version\": \"3.32.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":6,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6rj3-rf6g-3vw5","https://www.vulncheck.com/advisories/freerdp-3.9.0-before-3.32.0-rdpear-ndr-scalar-out-of-bounds-read"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109253","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109253","identifiers":["CVE-2026-109253"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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