{"id":"UBUNTU-CVE-2025-49091","details":"KDE Konsole before 25.04.2 allows remote code execution in a certain scenario. It supports loading URLs from the scheme handlers such as a ssh:// or telnet:// or rlogin:// URL. This can be executed regardless of whether the ssh, telnet, or rlogin binary is available. In this mode, there is a code path where if that binary is not available, Konsole falls back to using /bin/bash for the given arguments (i.e., the URL) provided. This allows an attacker to execute arbitrary code.","modified":"2026-09-14T22:00:25.508013527Z","published":"2025-06-11T01:15:00Z","related":["USN-8752-1"],"upstream":["CVE-2025-49091"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-49091"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-49091"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2025/06/10/5"},{"type":"REPORT","url":"https://kde.org/info/security/advisory-20250609-1.txt"},{"type":"REPORT","url":"https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327b5642a2b75"},{"type":"REPORT","url":"https://invent.kde.org/utilities/konsole/-/tags"},{"type":"REPORT","url":"https://konsole.kde.org/changelog.html"},{"type":"REPORT","url":"https://proofnet.de/publikationen/konsole_rce.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8752-1"}],"affected":[{"package":{"name":"konsole","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:15.12.3-0ubuntu1+esm1"}]}],"versions":["4:15.08.2-0ubuntu2","4:15.12.1-1ubuntu1","4:15.12.3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"konsole","binary_version":"4:15.12.3-0ubuntu1+esm1"},{"binary_name":"konsole-kpart","binary_version":"4:15.12.3-0ubuntu1+esm1"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}},{"package":{"name":"konsole","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:17.12.3-1ubuntu1+esm1"}]}],"versions":["4:17.04.3-0ubuntu1","4:17.08.3-0ubuntu1","4:17.12.2-0ubuntu1","4:17.12.3-0ubuntu1","4:17.12.3-1ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"konsole","binary_version":"4:17.12.3-1ubuntu1+esm1"},{"binary_name":"konsole-kpart","binary_version":"4:17.12.3-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}},{"package":{"name":"konsole","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:19.12.3-0ubuntu1+esm1"}]}],"versions":["4:19.04.3-0ubuntu1","4:19.08.2-0ubuntu1","4:19.08.3-0ubuntu1","4:19.12.0-0ubuntu1","4:19.12.1-0ubuntu1","4:19.12.2-0ubuntu1","4:19.12.3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"konsole","binary_version":"4:19.12.3-0ubuntu1+esm1"},{"binary_name":"konsole-kpart","binary_version":"4:19.12.3-0ubuntu1+esm1"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}},{"package":{"name":"konsole","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:21.12.3-0ubuntu1+esm1"}]}],"versions":["4:21.08.1-1ubuntu1","4:21.08.2-1","4:21.08.3-0ubuntu1","4:21.11.80-0ubuntu1","4:21.11.90-0ubuntu2","4:21.12.0-0ubuntu1","4:21.12.0-0ubuntu2","4:21.12.1-0ubuntu1","4:21.12.2-0ubuntu1","4:21.12.3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"konsole","binary_version":"4:21.12.3-0ubuntu1+esm1"},{"binary_version":"4:21.12.3-0ubuntu1+esm1","binary_name":"konsole-kpart"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}},{"package":{"name":"konsole","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4:23.08.5-0ubuntu4+esm1"}]}],"versions":["4:23.08.1-0ubuntu1","4:23.08.2-0ubuntu1","4:23.08.3-0ubuntu1","4:23.08.4-0ubuntu1","4:23.08.4-0ubuntu2","4:23.08.5-0ubuntu1","4:23.08.5-0ubuntu2","4:23.08.5-0ubuntu3","4:23.08.5-0ubuntu4"],"ecosystem_specific":{"binaries":[{"binary_name":"konsole","binary_version":"4:23.08.5-0ubuntu4+esm1"},{"binary_version":"4:23.08.5-0ubuntu4+esm1","binary_name":"konsole-kpart"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}},{"package":{"name":"konsole","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/konsole?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4:24.12.3-0ubuntu1","4:25.04.0-0ubuntu1","4:25.04.1-0ubuntu1","4:25.04.2-0ubuntu1","4:25.04.2-1ubuntu1","4:25.04.3-0ubuntu1","4:25.07.80-0ubuntu1","4:25.07.90-0ubuntu1","4:25.08.0-0ubuntu1","4:25.08.1-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"konsole","binary_version":"4:25.08.1-0ubuntu1"},{"binary_name":"konsole-kpart","binary_version":"4:25.08.1-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-49091.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}