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
CVE-2021-35464
Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.
- Actively exploited in the wild (CISA-KEV)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(high)
- EG Risk
- 99(Act)EG Risk 99/100SSVC: Act
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation100% × 40%Automatability100% × 15%Action: Fix now — active exploitation, automatable, high impact. - EPSS PROB
- 100%
- EPSS %ILE
- 100%
- KEV
- ⚠ Exploited
Published
July 22, 2021
Last Modified
November 5, 2025
Advisory Details (3)
Auto-updated Sep 17, 2026Known Exploited Vulnerabilities Catalog | CISA
Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-35464Packet Storm Security
http://packetstormsecurity.com/files/163486/ForgeRock-OpenAM-Jato-Java-Deserialization.htmlLocked Out | Packet Storm
http://packetstormsecurity.com/files/163525/ForgeRock-Access-Manager-OpenAM-14.6.3-Remote-Code-Execution.htmlWeakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 43× in last 7d / 188× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 683 total refreshes for this CVE.
- 2026-09-20 02:19 UTCGHSA enrichment
- 2026-09-19 22:02 UTCGHSA enrichment
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- 2026-09-18 19:20 UTCCISA KEV update
- 2026-09-18 15:59 UTCGHSA enrichment
- 2026-09-18 14:15 UTCCISA KEV update
- 2026-09-18 11:38 UTCGHSA enrichment
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- 2026-09-16 14:10 UTCCISA KEV update
- 2026-09-16 12:20 UTCGHSA enrichment
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- 2026-09-16 03:43 UTCGHSA enrichment
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- 2026-09-14 19:24 UTCCISA KEV update
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- 2026-09-11 20:41 UTCGHSA enrichment
- 2026-09-11 18:49 UTCCISA KEV update
- 2026-09-11 16:24 UTCEG score recompute
- 2026-09-11 16:24 UTCGHSA enrichment
- 2026-09-11 14:49 UTCEPSS rescore
- 2026-09-11 12:06 UTCGHSA enrichment
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- 2026-09-11 03:32 UTCGHSA enrichment
- 2026-09-10 23:15 UTCGHSA enrichment
- 2026-09-10 19:28 UTCCISA KEV update
- 2026-09-10 18:58 UTCGHSA enrichment
- 2026-09-10 14:41 UTCGHSA enrichment
- 2026-09-10 10:24 UTCGHSA enrichment
- 2026-09-10 06:07 UTCGHSA enrichment
- 2026-09-10 01:49 UTCGHSA enrichment
- 2026-09-09 21:31 UTCGHSA enrichment
- 2026-09-09 19:08 UTCCISA KEV update
- 2026-09-09 17:14 UTCGHSA enrichment
- 2026-09-09 12:57 UTCGHSA enrichment
- 2026-09-09 08:40 UTCGHSA enrichment
- 2026-09-09 04:22 UTCGHSA enrichment
- 2026-09-09 00:05 UTCGHSA enrichment
- 2026-09-08 19:48 UTCGHSA enrichment
- 2026-09-08 18:54 UTCCISA KEV update
- 2026-09-08 15:30 UTCGHSA enrichment
- 2026-09-08 11:13 UTCGHSA enrichment
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- 2026-09-05 05:46 UTCGHSA enrichment
- 2026-09-05 01:29 UTCGHSA enrichment
- 2026-09-04 21:12 UTCGHSA enrichment
- 2026-09-04 17:38 UTCCISA KEV update
- 2026-09-04 16:55 UTCGHSA enrichment
- 2026-09-04 12:36 UTCGHSA enrichment
- 2026-09-04 08:18 UTCGHSA enrichment
Publicly available exploits
(4 references)Working exploit code is in the public domain (1 Metasploit module) (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-50131First seen Jul 16, 2021
ForgeRock Access Manager 14.6.3 - Remote Code Execution (RCE) (Unauthenticated)
Open source ↗ - GitHub PoCY4er/openam-CVE-2021-35464First seen Jul 1, 2021
openam-CVE-2021-35464 tomcat 执行命令回显
Open source ↗ - Metasploitexploit/multi/http/cve_2021_35464_forgerock_openam✓ verifiedFirst seen Jun 29, 2021
ForgeRock / OpenAM Jato Java Deserialization
Open source ↗ - Nucleihttp/cves/2021/CVE-2021-35464.yamlFirst seen Jan 1, 2021
ForgeRock OpenAM <7.0 - Remote Code Execution
Open source ↗
Related CVEs(same CWE)
Same CWE
10 shownCWE-502
- CVE-2017-10992EG 9.8EPSS p96CRITICAL
- CVE-2013-4521EG 9.8EPSS p90CRITICAL
- CVE-2014-1860EG 9.8CRITICAL
- CVE-2016-1000027EG 9.8EPSS p98CRITICAL
- CVE-2014-3699EG 9.8CRITICAL
- CVE-2017-10934EG 9.8CRITICAL
- CVE-2016-9498EG 9.8EPSS p97CRITICAL
- CVE-2016-9483EG 9.8CRITICAL
- CVE-2015-2020EG 9.8CRITICAL
- CVE-2017-15692EG 9.8EPSS p92CRITICAL
Frequently asked(6)
What is CVE-2021-35464?
When was CVE-2021-35464 disclosed?
Is CVE-2021-35464 actively exploited?
What is the CVSS score of CVE-2021-35464?
Which products are affected by CVE-2021-35464?
How do I remediate CVE-2021-35464?
Dependency Blast Radius
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