CVE-2021-22506 (GCVE-0-2021-22506)
Vulnerability from cvelistv5 – Published: 2021-03-26 13:37 – Updated: 2025-10-21 23:25- Information Leakage
- CWE-noinfo Not enough information
| URL | Tags |
|---|---|
| https://www.microfocus.com/documentation/access-m… | x_refsource_MISC |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | Access Manager. |
Affected:
All version prior version 5.0.
|
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Micro Focus Access Manager |
| Due Date | 2021-11-17 |
| Date Added | 2021-11-03 |
| Vendorproject | Micro Focus |
| Vulnerabilityname | Micro Focus Access Manager Information Leakage Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
Exploited: Yes
Timestamps
Scope
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | Advance configuration exposing Information Leakage vulnerability in Micro Focus Access Manager product, affects all versions prior to version 5.0.... |
| Vendor | Micro Focus |
| Product | Access Manager. |
| Added Date | 2021-11-03T00:00:00.000Z |
| Cvss Score | 7.5 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T18:44:14.045Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-22506",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-06T20:51:43.024883Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2021-11-03",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-21T23:25:51.576Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506"
}
],
"timeline": [
{
"lang": "en",
"time": "2021-11-03T00:00:00.000Z",
"value": "CVE-2021-22506 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Access Manager.",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "All version prior version 5.0."
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Information Leakage",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-03-26T13:37:22.000Z",
"orgId": "f81092c5-7f14-476d-80dc-24857f90be84",
"shortName": "microfocus"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@microfocus.com",
"ID": "CVE-2021-22506",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Access Manager.",
"version": {
"version_data": [
{
"version_value": "All version prior version 5.0."
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "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."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Information Leakage"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html",
"refsource": "MISC",
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "f81092c5-7f14-476d-80dc-24857f90be84",
"assignerShortName": "microfocus",
"cveId": "CVE-2021-22506",
"datePublished": "2021-03-26T13:37:22.000Z",
"dateReserved": "2021-01-05T00:00:00.000Z",
"dateUpdated": "2025-10-21T23:25:51.576Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"cisa_known_exploited": {
"cveID": "CVE-2021-22506",
"dateAdded": "2021-11-03",
"dueDate": "2021-11-17",
"forensicTriage": "No",
"knownRansomwareCampaignUse": "Unknown",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-22506",
"product": "Micro Focus Access Manager",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Micro Focus Access Manager contains an information leakage vulnerability resulting from a SAML service provider redirection issue when the Assertion Consumer Service URL is used.",
"vendorProject": "Micro Focus",
"vulnerabilityName": "Micro Focus Access Manager Information Leakage Vulnerability"
},
"epss": {
"cve": "CVE-2021-22506",
"date": "2026-09-24",
"epss": "0.25695",
"percentile": "0.97891"
},
"nvd": {
"cve": {
"cisaActionDue": "2021-11-17",
"cisaExploitAdd": "2021-11-03",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Micro Focus Access Manager Information Leakage Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microfocus:access_manager:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B3A53E36-0652-4D66-B500-588777280039",
"versionEndExcluding": "5.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Una configuraci\u00f3n avanzada que expone una vulnerabilidad de Filtrado de Informaci\u00f3n en el producto Micro Focus Access Manager afecta a todas las versiones anteriores a 5.0.\u0026#xa0;La vulnerabilidad podr\u00eda causar un filtrado de informaci\u00f3n."
}
],
"id": "CVE-2021-22506",
"lastModified": "2025-10-27T16:58:39.307",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2021-03-26T14:15:11.967",
"references": [
{
"source": "security@opentext.com",
"tags": [
"Release Notes"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Release Notes"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506"
}
],
"sourceIdentifier": "security@opentext.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T14:50:13+00:00",
"cve": "CVE-2021-22506",
"id": "CVE-2021-22506",
"initial_release_date": "2021-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2021-22506",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-22506.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T18:44:14.045Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2021-22506",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-06T20:51:43.024883Z",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2021-11-03",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506"
},
"type": "kev"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-noinfo Not enough information",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-02-06T20:51:16.700Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22506"
}
],
"timeline": [
{
"lang": "en",
"time": "2021-11-03T00:00:00.000Z",
"value": "CVE-2021-22506 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Access Manager.",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "All version prior version 5.0."
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Information Leakage",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-03-26T13:37:22.000Z",
"orgId": "f81092c5-7f14-476d-80dc-24857f90be84",
"shortName": "microfocus"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@microfocus.com",
"ID": "CVE-2021-22506",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Access Manager.",
"version": {
"version_data": [
{
"version_value": "All version prior version 5.0."
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "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."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Information Leakage"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html",
"refsource": "MISC",
"url": "https://www.microfocus.com/documentation/access-manager/5.0/accessmanager50-release-notes/accessmanager50-release-notes.html"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "f81092c5-7f14-476d-80dc-24857f90be84",
"assignerShortName": "microfocus",
"cveId": "CVE-2021-22506",
"datePublished": "2021-03-26T13:37:22.000Z",
"dateReserved": "2021-01-05T00:00:00.000Z",
"dateUpdated": "2025-10-21T23:25:51.576Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.