CVE-2025-34026
Actively exploited. CVE-2025-34026 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-01-22) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2025-34026 is indexed in Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Versa Concerto SD-WAN orchestration platform contains an improper authentication vulnerability 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.
CSIRTS triage
- What
- The vulnerability allows an attacker to access administrative endpoints due to improper authentication in the Traefik reverse proxy configuration.
- Who is affected
- Deployments of Versa Concerto SD-WAN orchestration platform are affected.
- Urgency
- Remediation is urgent as the vulnerability is actively exploited and classified as critical.
- Action
- Apply the latest security patch provided by Versa.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 100% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2025-34026 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2025-34026: Versa Concerto Improper Authentication Vulnerabilitycisa-kev · 2026-01-22
External references
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[](https://www.csirts.com/cve/CVE-2025-34026)