{"cve":"CVE-2016-4437","nvd":{"published":"2016-06-07T14:06:13.247","modified":"2026-06-17T00:47:33.310","status":"Analyzed","description":"Apache Shiro before 1.2.5, when a cipher key has not been configured for the \"remember me\" feature, allows remote attackers to execute arbitrary code or bypass intended access restrictions via an unspecified request parameter.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-321"],"references":["http://packetstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.html","http://packetstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.html","http://rhn.redhat.com/errata/RHSA-2016-2035.html","http://rhn.redhat.com/errata/RHSA-2016-2036.html","http://www.securityfocus.com/archive/1/538570/100/0/threaded"],"products":["apache:aurora","apache:shiro","redhat:fuse","redhat:jboss_middleware_text-only_advisories"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-4437","score":0.93039,"percentile":0.99832,"date":"2026-10-31"},"kev":{"cve":"CVE-2016-4437","date_added":"2021-11-03","due_date":"2022-05-03","vendor":"Apache","product":"Shiro","known_ransomware":false},"osv":[{"id":"GHSA-p836-389h-j692","url":"https://osv.dev/vulnerability/GHSA-p836-389h-j692","summary":"Improper Access Control in Apache Shiro","modified":"2025-10-22T19:25:56.524449Z","packages":[{"ecosystem":"Maven","name":"org.apache.shiro:shiro-core","purl":"pkg:maven/org.apache.shiro/shiro-core","ranges":["<1.2.5"],"fixed":["1.2.5"]}]}],"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."]}