CVE-2021-4201 json
Pre-authentication session hijacking
published 2022-02-14 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-34059
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.0%
- EPSS 2.0% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
Missing access control in ForgeRock Access Management 7.1.0 and earlier versions on all platforms allows remote unauthenticated attackers to hijack sessions, including potentially admin-level sessions. This issue affects: ForgeRock Access Management 7.1 versions prior to 7.1.1; 6.5 versions prior to 6.5.4; all previous versions.
Patch / fix
- ForgeRock Access Management 6.5.4, 7.1.1
Exploit prediction
1.99% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- ForgeRock Access Management
Classification
References
-
backstage.forgerock.com
/knowledge/kb/article/a50037155#x7ZPA0
patch, vendor-advisory
Sources
- CVE List CVE-2021-4201
- NVD CVE-2021-4201
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