ZDI-26-582: Cisco Identity Services Engine PatchUpdateListener Directory Traversal Information Disclosure Vulnerability
Cisco Identity Services Engine's PatchUpdateListener has an authenticated directory traversal (CVE-2026-20148, CVSS 4.9) enabling sensitive information disclosure.
ZDI advisory ZDI-26-582 describes a directory traversal information disclosure vulnerability in the PatchUpdateListener component of Cisco Identity Services Engine. Remote attackers can disclose sensitive information, but valid authentication is required to exploit the flaw. ZDI assigned a CVSS rating of 4.9 and CVE-2026-20148.