{"id":"CVE-2021-20264","aliases":["EUVD-2021-7700","GHSA-gx4p-prhw-c28v"],"status":"published","title":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11...","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00271,"percentile":0.19454,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-266","CWE-269","CWE-732"],"published":"2021-10-06T15:12:05Z","modified":"2026-10-24T10:31:06Z","products":[{"vendor":"oracle","product":"openjdk"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1932283","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20264"},{"url":"https://github.com/advisories/GHSA-gx4p-prhw-c28v"}],"sources":{"cve":[{"id":"CVE-2021-20264","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","status":"published","published":"2021-10-06T15:12:05Z","modified":"2024-08-03T17:37:23.455Z","cwes":["CWE-266"],"updated_at":"2026-11-02T14:32:55.564736Z"}],"euvd":[{"id":"EUVD-2021-7700","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","status":"published","published":"2021-10-06T15:12:05Z","modified":"2024-08-03T17:37:23Z","updated_at":"2026-11-03T03:25:09.355483Z"}],"ghsa":[{"id":"GHSA-gx4p-prhw-c28v","title":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11...","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","status":"published","published":"2022-05-24T19:16:47Z","modified":"2023-01-27T05:01:56Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-266","CWE-269","CWE-732"],"updated_at":"2026-11-02T14:41:59.85242Z"}],"nvd":[{"id":"CVE-2021-20264","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","status":"published","published":"2021-10-06T16:15:07.297Z","modified":"2026-06-17T03:33:34.15Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-266","CWE-732"],"updated_at":"2026-11-02T14:06:59.314106Z"}],"osv":[{"id":"CVE-2021-20264","description":"An insecure modification flaw in the /etc/passwd file was found in the openjdk-1.8 and openjdk-11 containers. This flaw allows an attacker with access to the container to modify the /etc/passwd and escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.","status":"published","published":"2021-10-06T16:15:07.297Z","modified":"2026-10-24T10:31:06.246282176Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:18.004149Z"}]}}