Answer in brief
CVE-2025-34026 records a High severity vulnerability in Versa Concerto Actuator Authentication Bypass Information Leak. The current sources mark it as known exploited. The current feed maps Versa/Concerto (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 Versa/Concerto (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Versa/Concertogeneric | 12.1.2 | Not reported |
Published upstream
May 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Feb 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Jan 22, 2026
Evidence: source:kev:kev:kev:recordThe Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2025-34026 records a High severity vulnerability in Versa Concerto Actuator Authentication Bypass Information Leak. The current sources mark it as known exploited. The current feed maps Versa/Concerto (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. 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 Versa/Concerto (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Versa/Concertogeneric | 12.1.2 | Not reported |
Published upstream
May 21, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Feb 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Jan 22, 2026
Evidence: source:kev:kev:kev:recordThe Versa Concerto SD-WAN orchestration platform is vulnerable to an authentication bypass in the Traefik reverse proxy configuration, allowing at attacker to access administrative endpoints. The internal Actuator endpoint can be leveraged for access to heap dumps and trace logs.This issue is known to affect Concerto from 12.1.2 through 12.2.0. Additional versions may be vulnerable.
Quoted source text, attributed separately from HOL analysis.