CVE-2021-35464

ForgeRock AM server 6.x before 7, and OpenAM 14.6.3, has a Java deserialization vulnerability in...

9.8 CriticalIn KEVPublic exploit

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

100.0%Up 61.8 points since Jul 23, 2021

What each source reports

NVD Score used 9.8

Record: CVE-2021-35464
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-502
Updated: 2026-11-02

CVE List 9.8

Record: CVE-2021-35464
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

EUVDEUVD-2021-22106 9.8

Record: EUVD-2021-22106
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6x75-vwp5-q242 9.8

ForgeRock AM server 6.x before 7, and OpenAM 14.6.3, has a Java deserialization vulnerability in...

ForgeRock AM server 6.x before 7, and OpenAM 14.6.3, 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/Version request to the server. The vulnerability exists due to incorrect usage of Sun ONE Application Framework (JATO).

Record: GHSA-6x75-vwp5-q242
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-502
Updated: 2026-11-02

CISA KEV No score

ForgeRock Access Management (AM) Core Server Remote Code Execution Vulnerability

ForgeRock Access Management (AM) Core Server allows an attacker who sends a specially crafted HTTP request to one of three endpoints (/ccversion/Version, /ccversion/Masthead, or /ccversion/ButtonFrame) to execute code in the context of the current user (unless ForgeRock AM is running as root user, which the vendor does not recommend).

Record: CVE-2021-35464
Weakness: CWE-502
Updated: 2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Metasploit	ForgeRock / OpenAM Jato Java Deserialization	2021-06-29
PoC in GitHub	Y4er/openam-CVE-2021-35464	2021-07-01
Exploit-DB	ForgeRock Access Manager 14.6.3 - Remote Code Execution (RCE) (Unauthenticated)	2021-07-16
PoC in GitHub	rood8008/CVE-2021-35464	2021-08-21
Nuclei	ForgeRock OpenAM <7.0 - Remote Code Execution

History

History
Recorded	Changed	Sources
Nov 3, 2026	exploitation, exploits
Nov 2, 2026	first indexed	CVE List, EUVD, Exploit-DB, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-35464 is a critical vulnerability (CVSS 9.8) in Forgerock Openam, published July 22, 2021. CISA lists it as known to be exploited, since November 3, 2021. EUVD reports exploitation since November 3, 2021. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 100.0%, the 99th percentile. No source names a fixed version.