How severe is CVE-2021-4201?

CVE-2021-4201 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-4201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4201?

CVE-2021-4201 primarily affects Forgerock Access Management. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-4201?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-4201 published?

CVE-2021-4201 was published on 2022-02-14 and last updated on 2026-06-17.

CVE-2021-4201

CVE-2021-4201 is a critical-severity vulnerability in Forgerock Access Management with a CVSS 3.x base score of 9.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Forgerock Access Management
Published: 2022-02-14
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-4201?: 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.
How severe is CVE-2021-4201?: CVE-2021-4201 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-4201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4201?: CVE-2021-4201 primarily affects Forgerock Access Management. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-4201?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-4201 published?: CVE-2021-4201 was published on 2022-02-14 and last updated on 2026-06-17.

References

https://backstage.forgerock.com/knowledge/kb/article/a50037155#x7ZPA0

Affected products (20)

cpe:2.3:a:forgerock:access_management:5.5.2:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.1:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.2:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.3:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.4:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.6:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.0.0.7:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.2.1:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.2.2:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.2.3:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:6.5.3:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:forgerock:access_management:7.1.0:*:*:*:*:*:*:*

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