{"id":"CVE-2020-11086","details":"In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.","modified":"2026-04-16T04:34:36.641018335Z","published":"2020-05-29T20:15:10.767Z","related":["ALSA-2020:4647","GHSA-fg8v-w34r-c974","SUSE-SU-2020:2032-1","SUSE-SU-2020:2068-1","SUSE-SU-2020:2272-1","openSUSE-SU-2020:1090-1"],"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html"},{"type":"FIX","url":"https://github.com/FreeRDP/FreeRDP/commit/c098f21fdaadca57ff649eee1674f6cc321a2ec4"},{"type":"FIX","url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg8v-w34r-c974"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/freerdp/freerdp","events":[{"introduced":"0"},{"fixed":"11b9b1ca6be433f1da5bbf5e152d554d3eb67ac6"},{"fixed":"c098f21fdaadca57ff649eee1674f6cc321a2ec4"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"2.1.0"}]}}],"versions":["1.0-beta1","1.0-beta2","1.0-beta4","1.0-beta5","1.0.0","1.0.1","1.1.0-beta+2013071101","1.1.0-beta1","1.1.0-beta1+android2","1.1.0-beta1+android3","1.1.0-beta1+android4","1.1.0-beta1+android5","1.1.0-beta1+ios1","1.1.0-beta1+ios2","1.1.0-beta1+ios3","1.1.0-beta1+ios4","1.2.0-beta1+android7","1.2.0-beta1+android9","2.0.0","2.0.0-beta1+android10","2.0.0-beta1+android11","2.0.0-rc0","2.0.0-rc1","2.0.0-rc2","2.0.0-rc3","2.0.0-rc4"],"database_specific":{"vanir_signatures":[{"signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["211676456731767137019728773717396383906","142002718534890085186882303774041871813","326590373457921532474577125776340758673","92446602161392049848322987325756642675","244837119603015813013823863255436314461","88986712316767417463579653199593800425","205040071286649792016492765856929257982","322933729723612140702113726666585771660"]},"signature_type":"Line","id":"CVE-2020-11086-5849ac3d","target":{"file":"winpr/libwinpr/sspi/NTLM/ntlm_compute.c"},"deprecated":false,"source":"https://github.com/freerdp/freerdp/commit/c098f21fdaadca57ff649eee1674f6cc321a2ec4"},{"source":"https://github.com/freerdp/freerdp/commit/c098f21fdaadca57ff649eee1674f6cc321a2ec4","digest":{"function_hash":"191925567384038713584274953095323463496","length":652},"signature_version":"v1","signature_type":"Function","id":"CVE-2020-11086-a90348c5","deprecated":false,"target":{"function":"ntlm_read_ntlm_v2_client_challenge","file":"winpr/libwinpr/sspi/NTLM/ntlm_compute.c"}}],"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}],"vanir_signatures_modified":"2026-04-11T15:27:44Z","source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11086.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L"}]}