What’s Vulnerable › Vulnerabilities

CVE-2021-35464: ForgeRock Access Management (AM) Core Server Remote Code Execution Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 100.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-22 · updated 2026-06-17
• Weakness: CWE-502

Description

ForgeRock AM server before 7.0 has a Java deserialization vulnerability in the jato.pageSession parameter on multiple pages. The exploitation does not require authentication, and remote code execution can be triggered by sending a single crafted /ccversion/* request to the server. The vulnerability exists due to the usage of Sun ONE Application Framework (JATO) found in versions of Java 8 or earlier

Affected products

• ForgeRock Access Management: before 6.5.4 — fixed in 6.5.4
• ForgeRock Openam: from 9.0.0 before 14.6.3 — fixed in 14.6.3

How to fix

Upgrade to a fixed version: ForgeRock Access Management 6.5.4; ForgeRock Openam 14.6.3. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.html
• http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.html
• https://backstage.forgerock.com/knowledge/kb/article/a47894244
• https://bugster.forgerock.org
• http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.html
• http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.html
• https://backstage.forgerock.com/knowledge/kb/article/a47894244
• https://bugster.forgerock.org
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35464

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