{"cve":"CVE-2016-2854","nvd":{"published":"2016-05-02T10:59:34.533","modified":"2026-06-17T00:44:35.883","status":"Modified","description":"The aufs module for the Linux kernel 3.x and 4.x does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-269"],"references":["http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/","http://www.openwall.com/lists/oss-security/2016/02/24/9","http://www.securityfocus.com/bid/96838","https://sourceforge.net/p/aufs/mailman/message/34864744/","http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-2854","score":0.0095,"percentile":0.61253,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}