Answer in brief
CVE-2026-20195 records a Medium severity (CVSS 5.3) vulnerability in Cisco Identity Services Engine Observable Response Discrepancy Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Identity Services Engine Software (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco Identity Services Engine Software (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco Identity Services Engine Softwaregeneric | 3.3.0 || 3.3 Patch 2 || 3.3 Patch 1 || 3.3 Patch 3 || 3.4.0 || 3.3 Patch 4 || 3.4 Patch 1 || 3.3 Patch 5 || 3.3 Patch 6 || 3.4 Patch 2 || 3.3 Patch 7 || 3.4 Patch 3 || 3.5.0 || 3.4 Patch 4 || 3.3 Patch 8 || 3.5 Patch 1 || 3.3 Patch 9 || 3.4 Patch 5 || 3.5 Patch 3 || 3.5 Patch 2 || 3.3 Patch 10 | Not reported |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
A vulnerability in an identity management API endpoint of Cisco ISE could allow an unauthenticated, remote attacker to enumerate valid user accounts on an affected device. This vulnerability exists because error messages are observed when the affected API endpoint is called. An attacker could exploit this vulnerability by sending a series of crafted requests to the affected endpoint and analyzing the differentiated responses. A successful exploit could allow the attacker to compile a list of valid usernames on an affected system.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-20195 records a Medium severity (CVSS 5.3) vulnerability in Cisco Identity Services Engine Observable Response Discrepancy Vulnerability. The current sources do not mark it as known exploited. The current feed maps Cisco/Cisco Identity Services Engine Software (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Cisco/Cisco Identity Services Engine Software (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Cisco/Cisco Identity Services Engine Softwaregeneric | 3.3.0 || 3.3 Patch 2 || 3.3 Patch 1 || 3.3 Patch 3 || 3.4.0 || 3.3 Patch 4 || 3.4 Patch 1 || 3.3 Patch 5 || 3.3 Patch 6 || 3.4 Patch 2 || 3.3 Patch 7 || 3.4 Patch 3 || 3.5.0 || 3.4 Patch 4 || 3.3 Patch 8 || 3.5 Patch 1 || 3.3 Patch 9 || 3.4 Patch 5 || 3.5 Patch 3 || 3.5 Patch 2 || 3.3 Patch 10 | Not reported |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 29, 2026
A vulnerability in an identity management API endpoint of Cisco ISE could allow an unauthenticated, remote attacker to enumerate valid user accounts on an affected device. This vulnerability exists because error messages are observed when the affected API endpoint is called. An attacker could exploit this vulnerability by sending a series of crafted requests to the affected endpoint and analyzing the differentiated responses. A successful exploit could allow the attacker to compile a list of valid usernames on an affected system.
Quoted source text, attributed separately from HOL analysis.