{"id":"UBUNTU-CVE-2026-49878","details":"In wpas_handle_robust_av_scs_recv_action of robust_av.c, there is a possible out-of-bounds write due to a logic error in the code. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation.","modified":"2026-10-08T12:54:06.175210360Z","published":"2026-10-05T19:17:00Z","upstream":["CVE-2026-49878"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49878"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49878"}],"affected":[{"package":{"name":"wpa","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0-3ubuntu2","1.0-3ubuntu3","1.0-3ubuntu4","2.1-0ubuntu1","2.1-0ubuntu1.1","2.1-0ubuntu1.2","2.1-0ubuntu1.3","2.1-0ubuntu1.4","2.1-0ubuntu1.5","2.1-0ubuntu1.6","2.1-0ubuntu1.7","2.1-0ubuntu1.7+esm1","2.1-0ubuntu1.7+esm2","2.1-0ubuntu1.7+esm3","2.1-0ubuntu1.7+esm4","2.1-0ubuntu1.7+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.1-0ubuntu1.7+esm5","binary_name":"hostapd"},{"binary_name":"wpagui","binary_version":"2.1-0ubuntu1.7+esm5"},{"binary_name":"wpasupplicant","binary_version":"2.1-0ubuntu1.7+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4-0ubuntu3","2.4-0ubuntu4","2.4-0ubuntu5","2.4-0ubuntu6","2.4-0ubuntu6.2","2.4-0ubuntu6.3","2.4-0ubuntu6.4","2.4-0ubuntu6.5","2.4-0ubuntu6.6","2.4-0ubuntu6.7","2.4-0ubuntu6.8","2.4-0ubuntu6.8+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.4-0ubuntu6.8+esm1","binary_name":"hostapd"},{"binary_name":"wpagui","binary_version":"2.4-0ubuntu6.8+esm1"},{"binary_name":"wpasupplicant","binary_version":"2.4-0ubuntu6.8+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4-0ubuntu10","2:2.4-1.1ubuntu1","2:2.6-15ubuntu1","2:2.6-15ubuntu2","2:2.6-15ubuntu2.1","2:2.6-15ubuntu2.2","2:2.6-15ubuntu2.3","2:2.6-15ubuntu2.4","2:2.6-15ubuntu2.5","2:2.6-15ubuntu2.6","2:2.6-15ubuntu2.7","2:2.6-15ubuntu2.8","2:2.6-15ubuntu2.8+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2:2.6-15ubuntu2.8+esm1","binary_name":"hostapd"},{"binary_name":"wpagui","binary_version":"2:2.6-15ubuntu2.8+esm1"},{"binary_version":"2:2.6-15ubuntu2.8+esm1","binary_name":"wpasupplicant"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.9-1ubuntu2","2:2.9-1ubuntu3","2:2.9-1ubuntu4","2:2.9-1ubuntu4.1","2:2.9-1ubuntu4.2","2:2.9-1ubuntu4.3","2:2.9-1ubuntu4.4","2:2.9-1ubuntu4.6"],"ecosystem_specific":{"binaries":[{"binary_version":"2:2.9-1ubuntu4.6","binary_name":"hostapd"},{"binary_name":"wpagui","binary_version":"2:2.9-1ubuntu4.6"},{"binary_name":"wpasupplicant","binary_version":"2:2.9-1ubuntu4.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.9.0-21build1","2:2.9.0-23","2:2.10-1","2:2.10-2","2:2.10-6","2:2.10-6ubuntu1","2:2.10-6ubuntu2","2:2.10-6ubuntu2.1","2:2.10-6ubuntu2.2","2:2.10-6ubuntu2.3","2:2.10-6ubuntu2.4"],"ecosystem_specific":{"binaries":[{"binary_name":"eapoltest","binary_version":"2:2.10-6ubuntu2.4"},{"binary_name":"hostapd","binary_version":"2:2.10-6ubuntu2.4"},{"binary_name":"wpagui","binary_version":"2:2.10-6ubuntu2.4"},{"binary_name":"wpasupplicant","binary_version":"2:2.10-6ubuntu2.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49878.json"}},{"package":{"name":"wpa","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/wpa?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.10-15","2:2.10-18","2:2.10-20","2:2.10-21","2:2.10-21build2","2:2.10-21build3","2:2.10-21build4","2:2.10-21ubuntu0.1","2:2.10-21ubuntu0.2","2:2.10-21ubuntu0.3","2:2.10-21ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_name":"eapoltest","binary_version":"2:2.10-21ubuntu0.4"},{"binary_name":"hostapd","binary_version":"2:2.10-21ubuntu0.4"},{"binary_name":"wpagui","binary_version":"2:2.10-21ubuntu0.4"},{"binary_name":"wpasupplicant","binary_version":"2:2.10-21ubuntu0.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/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