9.8

CVE-2021-4201: forgerock access_management Improper Access Control

CVSS: 9.8v3.1CriticalModified
Published 14-02-2022Last modified 14-04-2025
Open JSON

Vulnerability summary

CVE-2021-4201 is a critical (CVSS 9.8) Improper Access Control vulnerability in forgerock access_management. EPSS estimates a 1.99% chance of exploitation in the next 30 days, higher than 80.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.99%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 14-02-2022
    PublishedVulnerability first disclosed.
  2. 14-04-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.99%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

0.00 pp

From 1.99% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.99%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Forgerock1 product
  • access_management≥ 7.1, < 7.1.1 | ≥ 6.5, < 6.5.4 | 5.5.2 | 6.0.0 | 6.0.0.1 | 6.0.0.2 | 6.0.0.3 | 6.0.0.4 | 6.0.0.6 | 6.0.0.7 | 6.5.0 | 6.5.0.1 | 6.5.0.2 | 6.5.1 | 6.5.2.1 | 6.5.2.2 | 6.5.2.3 | 6.5.3 | 7.0.0 | 7.0.1 | 7.0.2 | 7.1.0

1 vendor · 1 product

References

1 links