CVE-2016-4437
Apache Shiro Code Execution Vulnerability
- Published
- Jun 7, 2016
- Updated
- Oct 21, 2025
- Assigning CNA
- redhat
- Evidence observed
- May 1, 2020
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
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.
Sources
http/cves/2016/CVE-2016-4437.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)
- oob: interactsh_reference($.template_text)
shiro/CVE-2016-4437
Apache Shiro 1.2.4 Deserialization Remote Code Execution (CVE-2016-4437)
Vulhub vulnerability labsDeclared conditions
- lab image version: vulhub/shiro:1.2.4(shiro/CVE-2016-4437/docker-compose.yml:services.web.image)
modules/exploits/multi/http/shiro_rememberme_v124_deserialize.rb
Metasploit Framework modulesDeclared conditions
- platform: Unix,Windows($.exploit_multi/http/shiro_rememberme_v124_deserialize.platform)
- verification: check_not_declared($.exploit_multi/http/shiro_rememberme_v124_deserialize.check)
Responsible use
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