How severe is CVE-2021-22506?

CVE-2021-22506 has a CVSS 3.1 base score of 7.5 (HIGH). EPSS estimates a 25.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-22506: Micro Focus Access Manager Information Leakage

CISA Known Exploited Vulnerabilities

Micro Focus Access Manager Information Leakage Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2021-11-03

Remediation due

2021-11-17

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2021-22506

Description

Advance configuration exposing Information Leakage vulnerability in Micro Focus Access Manager product, affects all versions prior to version 5.0. The vulnerability could cause information leakage.

Severity

CVSS 3.1 · CISA7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impactpartial

Exploitation Context

as of October 17, 2026

All KEV statistics→

CISA added CVE-2021-22506 to the KEV catalog 222 days after its CVE record was published.
It is one of 2 Micro Focus entries in the CISA KEV catalog, and one of 2 added in 2021.
Its current EPSS score (25.7%) is higher than that of 39% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	Access Manager.	All version prior version 5.0.

References

1 Links

Other references

https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html

Record Details

Published

2021-03-26

Last updated

2025-10-21

Assigner (CNA)

microfocus

Credited to

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.