{"id":"CVE-2025-57849","aliases":["EUVD-2025-208627","GHSA-wf9w-74ph-2gqq"],"status":"published","title":"Fuse: privilege escalation via excessive /etc/passwd permissions","description":"A container privilege escalation flaw was found in certain Fuse 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":"2026-11-12","score":0.00241,"percentile":0.15381,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2026-03-13T03:08:32Z","modified":"2026-06-17T09:43:31Z","products":[{"vendor":"red hat","product":"red hat fuse 7"},{"vendor":"redhat","product":"fuse"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2025-57849","tags":["vdb-entry","x_refsource_REDHAT","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2391100","tags":["issue-tracking","x_refsource_REDHAT","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-57849"},{"url":"https://github.com/advisories/GHSA-wf9w-74ph-2gqq"}],"sources":{"cve":[{"id":"CVE-2025-57849","title":"Fuse: privilege escalation via excessive /etc/passwd permissions","description":"A container privilege escalation flaw was found in certain Fuse 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":"2026-03-13T03:08:32.594Z","modified":"2026-03-13T14:13:19.03Z","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":"2026-11-02T14:32:34.773122Z"}],"euvd":[{"id":"EUVD-2025-208627","description":"A container privilege escalation flaw was found in certain Fuse 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":"2026-03-13T03:08:32Z","modified":"2026-03-13T14:13:19Z","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":"2026-11-02T19:25:35.389351Z"}],"ghsa":[{"id":"GHSA-wf9w-74ph-2gqq","title":"A container privilege escalation flaw was found in certain Fuse images. This issue stems from the...","description":"A container privilege escalation flaw was found in certain Fuse 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":"2026-03-13T21:31:45Z","modified":"2026-03-13T21:31:57Z","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"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T15:06:35.870837Z"}],"nvd":[{"id":"CVE-2025-57849","description":"A container privilege escalation flaw was found in certain Fuse 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":"2026-03-13T19:53:52.313Z","modified":"2026-06-17T09:43:31.93Z","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"},{"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":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:12:01.641503Z"}]}}