CVE-2026-20190
ZDI-26-580: Cisco Identity Services Engine Missing Authentication for Critical Function Information Disclosure Vulnerability
Published Aug 13, 2026
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.
Timeline
Detection, updates, and resolution for this record.
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.orgCVE-2026-20190
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-20190
30-day exploitation probability 0.5%
first.org - Zero Day InitiativeZDI-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