CVE-2016-4437Apache 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 uns…
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It affects apache aurora and 3 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by May 3, 2022. Treat that date as your deadline.
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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
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-321
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due May 3, 2022Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 93.04% (percentile 100)
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
apache aurora apache:aurora | from 0.10.0 before 0.18.1 | NVD |
apache shiro apache:shiro | before 1.2.5 | NVD |
redhat fuse redhat:fuse | 1.0 | NVD |
redhat jboss_middleware_text-only_advisories redhat:jboss_middleware_text-only_advisories | 1.0 | NVD |
References
- http://rhn.redhat.com/errata/RHSA-2016-2035.htmlvendor-advisory, x-refsource-redhat, third-party-advisory
- https://lists.apache.org/thread.html/ef3a800c7d727a00e04b78e2f06c5cd8960f09ca28c9b69d94c3c4c4%40%3Cannouncements.aurora.apache.org%3Emailing-list, x-refsource-mlist
- http://packetstormsecurity.com/files/137310/Apache-Shiro-1.2.4-Information-Disclosure.htmlx-refsource-misc, third-party-advisory, vdb-entry
- http://rhn.redhat.com/errata/RHSA-2016-2036.htmlvendor-advisory, x-refsource-redhat, third-party-advisory
- http://www.securityfocus.com/bid/91024vdb-entry, x-refsource-bid, broken-link, third-party-advisory
- http://www.securityfocus.com/archive/1/538570/100/0/threadedmailing-list, x-refsource-bugtraq, broken-link, third-party-advisory, vdb-entry
- http://packetstormsecurity.com/files/157497/Apache-Shiro-1.2.4-Remote-Code-Execution.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4437us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.