Security readout for executives and security teams
Plain-English summary
CVE-2021-22506 is an information leakage flaw in Micro Focus Access Manager before version 5.0. An unauthenticated network attacker could expose sensitive information. Because CISA lists it in KEV, treat this as a real-world exploited issue, not only a theoretical risk.
Executive priority
High priority. This affects identity infrastructure, has high confidentiality impact, and is listed by CISA as known exploited. Leadership should require rapid inventory, remediation ownership, and confirmation that no pre-5.0 Access Manager instances remain exposed.
Technical view
The CVSS vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating remote, low-complexity, unauthenticated exploitation with high confidentiality impact and no stated integrity or availability impact. The source describes an advanced configuration exposure affecting all versions before Access Manager 5.0.
Likely exposure
Exposure is likely for organizations running Micro Focus Access Manager versions earlier than 5.0, particularly network-accessible identity or access-management deployments. The source does not identify exact deployment settings beyond “advanced configuration,” so configuration-specific exposure needs vendor-guided validation.
Exploitation context
CISA KEV status indicates known exploitation in the wild. The provided sources do not include exploit mechanics, actor attribution, or exploitation volume. Do not assume broader product impact beyond Micro Focus Access Manager before 5.0.
Researcher notes
The public bundle is sparse: no CWE, exploit detail, or configuration specifics are provided. Ground analysis in the CVSS vector, affected-version statement, Micro Focus 5.0 reference, and CISA KEV listing. Avoid assuming integrity, availability, or non-Access Manager impact.
Mitigation direction
- Inventory Micro Focus Access Manager deployments and versions.
- Prioritize upgrades from versions before 5.0 using vendor guidance.
- Review Micro Focus Access Manager 5.0 release notes and advisories.
- Limit network exposure to trusted administrative and user paths where feasible.
- Monitor identity infrastructure logs for unusual information access patterns.
Validation and detection
- Confirm whether any Access Manager instance runs below version 5.0.
- Verify whether the referenced advanced configuration is enabled or exposed.
- Check CISA KEV tracking for remediation urgency and deadlines.
- Confirm remediation status after upgrade or vendor-approved mitigation.
- Review access logs for suspicious unauthenticated requests.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-22506 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.htmlCVE reference · x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.