{"id":"UBUNTU-CVE-2025-43960","details":"Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.","modified":"2026-05-20T16:23:28.500575016Z","published":"2025-08-25T14:15:00Z","upstream":["CVE-2025-43960"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-43960"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-43960"},{"type":"REPORT","url":"https://github.com/Seldaek/monolog"},{"type":"REPORT","url":"https://github.com/far00t01/CVE-2025-43960"},{"type":"REPORT","url":"https://github.com/vrana/adminer/compare/v4.8.1...v4.8.2"},{"type":"REPORT","url":"https://www.adminer.org"}],"affected":[{"package":{"name":"adminer","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.1-1","4.2.1-1ubuntu1","4.2.1-1ubuntu1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"adminer","binary_version":"4.2.1-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.3.1-2","4.5.0-1","4.6.1-1","4.6.2-1","4.6.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.6.2-1ubuntu0.1~esm1","binary_name":"adminer"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.2-1","4.7.4-1","4.7.5-1","4.7.6-1","4.7.6-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"adminer","binary_version":"4.7.6-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.7.9-2","4.8.1-1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.8.1-1","binary_name":"adminer"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.1-1","4.8.1-1ubuntu1","4.8.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"adminer","binary_version":"4.8.1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.8.1-4","5.2.1+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.2.1+dfsg-1","binary_name":"adminer"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}},{"package":{"name":"adminer","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/adminer?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.2.1+dfsg-1","5.3.0+dfsg-1","5.4.0+dfsg-1","5.4.1+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"adminer","binary_version":"5.4.1+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-43960.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}