How severe is CVE-2021-22515?

CVE-2021-22515 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-22515 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22515?

CVE-2021-22515 primarily affects Microfocus Netiq Advanced Authentication. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22515?

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

When was CVE-2021-22515 published?

CVE-2021-22515 was published on 2021-07-12 and last updated on 2026-06-17.

CVE-2021-22515

CVE-2021-22515 is a medium-severity vulnerability in Microfocus Netiq Advanced Authentication with a CVSS 3.x base score of 4.8. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 4.0
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Microfocus Netiq Advanced Authentication
Published: 2021-07-12
Last modified: 2026-06-17

Description

Multi-Factor Authentication (MFA) functionality can be bypassed, allowing the use of single factor authentication in NetIQ Advanced Authentication versions prior to 6.3 SP4 Patch 1.

Frequently asked questions

What is CVE-2021-22515?: Multi-Factor Authentication (MFA) functionality can be bypassed, allowing the use of single factor authentication in NetIQ Advanced Authentication versions prior to 6.3 SP4 Patch 1.
How severe is CVE-2021-22515?: CVE-2021-22515 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-22515 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22515?: CVE-2021-22515 primarily affects Microfocus Netiq Advanced Authentication. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22515?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22515 published?: CVE-2021-22515 was published on 2021-07-12 and last updated on 2026-06-17.

References

https://www.netiq.com/documentation/advanced-authentication-63/advanced-authentication-releasenotes-6341/data/advanced-authentication-releasenotes-6341.html

Affected products (6)

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:*:*:*:*:*:*

More vulnerabilities in Microfocus Netiq Advanced Authentication

CVE-2023-24468 — Critical (CVSS 9.8): Broken access control in Advanced Authentication versions prior to 6.4.1.1 and 6.3.7.2
CVE-2021-38121 — High (CVSS 8.3): Insufficient or weak TLS protocol version identified in Advance authentication client server communication when…
CVE-2021-22530 — High (CVSS 8.2): A vulnerability identified in NetIQ Advance Authentication that doesn't enforce account lockout when brute force attack…
CVE-2021-22509 — High (CVSS 8.1): A vulnerability identified in storing and reusing information in Advance Authentication. This issue can lead to leakage…
CVE-2021-22529 — Medium (CVSS 6.3): A vulnerability identified in NetIQ Advance Authentication that leaks sensitive server information. This issue affects…
CVE-2022-38753 — Medium (CVSS 6.3): This update resolves a multi-factor authentication bypass attack

All CVEs affecting Microfocus Netiq Advanced Authentication →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →