How severe is CVE-2021-22524?

CVE-2021-22524 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-22524 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22524?

CVE-2021-22524 affects Microfocus Access Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22524?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22524 published?

CVE-2021-22524 was published on 2021-09-13 and last updated on 2026-06-17.

CVE-2021-22524

CVE-2021-22524 is a medium-severity vulnerability in Microfocus Access Manager with a CVSS 3.x base score of 5.4. 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-91.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.0
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-91
Affected product: Microfocus Access Manager
Published: 2021-09-13
Last modified: 2026-06-17

Description

Injection attack caused the denial of service vulnerability in NetIQ Access Manager prior to 5.0.1 and 4.5.4

Frequently asked questions

What is CVE-2021-22524?: Injection attack caused the denial of service vulnerability in NetIQ Access Manager prior to 5.0.1 and 4.5.4
How severe is CVE-2021-22524?: CVE-2021-22524 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-22524 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22524?: CVE-2021-22524 affects Microfocus Access Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22524?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22524 published?: CVE-2021-22524 was published on 2021-09-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microfocus:access_manager:*:*:*:*:*:*:*:*

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Other CWE-91 (XML Injection) vulnerabilities

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CVE-2021-37154 — Critical (CVSS 9.8): In ForgeRock Access Management (AM) before 7.0.2, the SAML2 implementation allows XML injection, potentially enabling a…
CVE-2020-29128 — Critical (CVSS 9.8): petl before 1.68, in some configurations, allows resolution of entities in an XML document.
CVE-2020-25216 — Critical (CVSS 9.8): yWorks yEd Desktop before 3.20.1 allows code execution via an XSL Transformation when using an XML file in conjunction…

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