{"id":"CVE-2025-57848","aliases":["EUVD-2025-35712","GHSA-4c2p-6qpx-xc78"],"status":"published","title":"Container-native-virtualization: privilege escalation via excessive /etc/passwd permissions","description":"A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00191,"percentile":0.08872,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2025-10-23T20:10:31Z","modified":"2026-10-30T21:32:56Z","products":[{"vendor":"red hat","product":"red hat openshift virtualization 4"},{"vendor":"red hat","product":"rhel-8-cnv-4.12"},{"vendor":"red hat","product":"rhel-9-cnv-4.14"},{"vendor":"red hat","product":"rhel-9-cnv-4.16"},{"vendor":"red hat","product":"rhel-9-cnv-4.17"},{"vendor":"red hat","product":"rhel-9-cnv-4.18"},{"vendor":"red hat","product":"rhel-9-cnv-4.19"}],"references":[{"url":"https://access.redhat.com/errata/RHEA-2025:19904","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHEA-2025:20007","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHEA-2025:21119","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHEA-2025:21677","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHEA-2025:22750","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHEA-2026:0511","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2025-57848","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2391099","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-57848"},{"url":"https://github.com/advisories/GHSA-4c2p-6qpx-xc78"}],"sources":{"cve":[{"id":"CVE-2025-57848","title":"Container-native-virtualization: privilege escalation via excessive /etc/passwd permissions","description":"A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.","status":"published","published":"2025-10-23T20:10:31.311Z","modified":"2026-10-30T18:31:21.149Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:32:35.099955Z"}],"euvd":[{"id":"EUVD-2025-35712","description":"A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.","status":"published","published":"2025-10-23T20:10:31Z","modified":"2026-10-30T18:31:21Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"updated_at":"2026-11-02T16:59:02.630385Z"}],"ghsa":[{"id":"GHSA-4c2p-6qpx-xc78","title":"A container privilege escalation flaw was found in certain Container-native Virtualization images...","description":"A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.","status":"published","published":"2025-10-23T21:31:44Z","modified":"2026-10-30T21:32:56Z","cvss":[{"version":"3.1","score":5.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:L","level":"medium"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T15:14:53.220001Z"}],"nvd":[{"id":"CVE-2025-57848","description":"A container privilege escalation flaw was found in certain Container-native Virtualization images. This issue stems from the /etc/passwd file being created with group-writable permissions during build time. In certain conditions, an attacker who can execute commands within an affected container, even as a non-root user, can leverage their membership in the root group to modify the /etc/passwd file. This could allow the attacker to add a new user with any arbitrary UID, including UID 0, leading to full root privileges within the container.","status":"published","published":"2025-10-23T20:15:40.287Z","modified":"2026-10-30T19:17:40.983Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:11:39.579859Z"}]}}