CVE-2016-4437

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.930 · 100 %ileexploit · weaponizedDEEUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 9 exploits · weaponized

Likely / severe?

93.0% (100th) EPSS

CVSS 6.8 · medium

Is it mine?

10 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · cert_bund · nvd

added 2021-11-03remediate by 2022-05-03

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Apache Shiro Code Execution Vulnerability

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedRed Hat JBoss A-MQ 6.3redhat_csaf
The References section of this erratum contains a download link (you must log in to download the update).
https://access.redhat.com/errata/RHSA-2016:2036

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Psecondary · Red Hat Product Security US

v3.07.3highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Lsecondary · Red Hat Product Security US

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · OSV

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-287USCWE-321USCWE-321US

ATT&CK techniques

ATT&CK techniques this enables or maps to.

exploits (9)

Public proof-of-concept and weaponised exploit code.

exploit/multi/http/shiro_rememberme_v124_deserializeApache Shiro v1.2.4 Cookie RememberME Deserial RCEweaponized · metasploit
EDB-48410Apache Shiro 1.2.4 - Cookie RememberME Deserial RCE (Metasploit)functional · exploit_db
35789-gh/cve-2016-4437这是基于cve-2016-4437简单的漏洞复现代码PoC · poc_in_github
4nth0ny1130/shisoserial一个针对shiro反序列化漏洞(CVE-2016-4437)的快速利用工具/A simple tool targeted at shiro framework attacks with ysoserial.PoC · poc_in_github
CyberCTF/vulhub-shiro-cve-2016-4437Vulhub shiro/CVE-2016-4437: Shiro 1.2.4 rememberMe deserialization, run with IsoloomPoC · poc_in_github
bkfish/Awesome_shiroCVE-2016-4437-Shiro反序列化爆破模块和key,命令执行，反弹shell的脚本PoC · poc_in_github

affected products (10)

Products and version ranges known to be affected.

Red Hat JBoss A-MQ 6.3all versionscert_bundDEcpe:/a:redhat:jboss_amq:6.3
Red Hat JBoss Fuse 6.3all versionscert_bundDEcpe:/a:redhat:jboss_fuse:6.3
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a n/a≤ n/aenisa_euvdEU
apache aurora0.10.0 → 0.18.1nvdUScpe:2.3:a:apache:aurora:*:*:*:*:*:*:*:*
apache shiro< 1.2.5nvdUScpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*
redhat fuse= 1.0nvdUScpe:2.3:a:redhat:fuse:*:*:*:*:*:*:*:*
redhat jboss middleware text-only advisories= 1.0nvdUScpe:2.3:a:redhat:jboss_middleware_text-only_advisories:*:*:*:*:*:*:*:*
Maven org.apache.shiro:shiro-core< 1.2.5osvUSpkg:maven/org.apache.shiro/shiro-core
Red Hat JBoss A-MQ 6.3all versionsfixedredhat_csafUScpe:/a:redhat:jboss_amq:6.3

advisories (3)

Vendor and ecosystem advisories describing this.

RHSA-2016:2036Red Hat Security Advisory: Red Hat JBoss A-MQ 6.3 security update2016-10-06csaf · redhat_csafUS
Red Hat JBoss A-MQ 6.3, which fixes multiple security issues and includes several bug fixes and enhancements, is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
WID-SEC-W-2024-3616Red Hat JBoss Fuse: Mehrere SchwachstellenDeutsch2016-10-06csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat JBoss Fuse und Red Hat JBoss A-MQ ausnutzen, um einen Denial of Service Angriff durchzuführen, Code mit den Privilegien des angegriffenen Dienstes zur Ausführung bringen, vertrauliche Daten einzusehen, Informationen zu manipulieren oder Sicherheitsmechanismen zu umgehen.
GHSA-p836-389h-j692Improper Access Control in Apache Shiro2022-05-14ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd osv redhat_csaf NVD CVE.org MITRE

published 2016-06-07modified 2026-06-17

references (18)

External citations — patches, advisories, analysis.

scry

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