CVE-2025-20332: 
Cisco ISE vulnerability analysis and mitigation

A vulnerability (CVE-2025-20332) was discovered in the web-based management interface of Cisco Identity Services Engine (ISE). The vulnerability was disclosed on August 6, 2025, affecting Cisco ISE Software across multiple versions. This security flaw is characterized as an authorization bypass vulnerability with a CVSS Base Score of 4.3 (Medium severity) (Cisco Advisory).

The vulnerability stems from the lack of server-side validation of Administrator permissions in the web-based management interface. It has been assigned a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N, indicating network accessibility, low attack complexity, and low privileges required. The vulnerability is tracked under Cisco Bug ID CSCwm03606 and is classified under CWE-863 (Incorrect Authorization) (NVD, Cisco Advisory).

A successful exploitation of this vulnerability could allow an authenticated, remote attacker to modify parts of the configuration on an affected device, specifically the descriptions of files on a specific page. The impact is limited to configuration modifications, with no reported ability to achieve complete system compromise (Cisco Advisory).

Cisco has released software updates that address this vulnerability across multiple versions. For version 3.1, the fix is available in 3.1P10; for version 3.2, in 3.2P8 (Nov 2025); for version 3.3, in 3.3P4; and for version 3.4, in 3.4P1. There are no workarounds available for this vulnerability, making it essential to upgrade to a fixed release (Cisco Advisory).

The vulnerability was responsibly disclosed by security researchers Matei Badanoiu, Razvan Ilisanu, and Sebastian Radulea of Deloitte (Cisco Advisory).