ZDI-26-580: Cisco Identity Services Engine Missing Authentication for Critical Function Information Disclosure Vulnerability

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Aug 13, 2026 · Catalog

   Detected

   The vulnerability allows remote attackers to disclose sensitive information on affected installations of Cisco Identity Services Engine. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-20190.

Sources

• CVE.orgVulnerability recordCVE-2026-20190

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-20190

  30-day exploitation probability 0.5%

  first.org
• Zero Day InitiativeCoordinated disclosureZDI-26-580

  The vulnerability allows remote attackers to disclose sensitive information on affected installations of Cisco Identity Services Engine. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-20190.

  zerodayinitiative.com