How severe is CVE-2021-22509?

CVE-2021-22509 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2021-22509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22509?

CVE-2021-22509 primarily affects Microfocus Netiq Advanced Authentication. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22509?

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

Does CVE-2021-22509 have an EU (EUVD) identifier?

Yes. CVE-2021-22509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-9655.

When was CVE-2021-22509 published?

CVE-2021-22509 was published on 2024-08-28 and last updated on 2026-06-17.

CVE-2021-22509

CVE-2021-22509 is a high-severity vulnerability in Microfocus Netiq Advanced Authentication with a CVSS 3.x base score of 8.1. 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-312.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2021-9655
Weakness: CWE-312
Affected product: Microfocus Netiq Advanced Authentication
Published: 2024-08-28
Last modified: 2026-06-17

Description

A vulnerability identified in storing and reusing information in Advance Authentication. This issue can lead to leakage of sensitive data to unauthorized user. The issue affects NetIQ Advance Authentication before 6.3.5.1

Frequently asked questions

What is CVE-2021-22509?: A vulnerability identified in storing and reusing information in Advance Authentication. This issue can lead to leakage of sensitive data to unauthorized user. The issue affects NetIQ Advance Authentication before 6.3.5.1
How severe is CVE-2021-22509?: CVE-2021-22509 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2021-22509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22509?: CVE-2021-22509 primarily affects Microfocus Netiq Advanced Authentication. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2021-22509 have an EU (EUVD) identifier?: Yes. CVE-2021-22509 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-9655.
When was CVE-2021-22509 published?: CVE-2021-22509 was published on 2024-08-28 and last updated on 2026-06-17.

References

https://www.netiq.com/documentation/advanced-authentication-63/advanced-authentication-releasenotes-6351/data/advanced-authentication-releasenotes-6351.html

Affected products (8)

cpe:2.3:a:microfocus:netiq_advanced_authentication:*:*:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:-:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp1:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp2:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp3:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp4:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp4_patch1:*:*:*:*:*:*
cpe:2.3:a:microfocus:netiq_advanced_authentication:6.3:sp5:*:*:*:*:*:*

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