- Critical 9.9
CVE-2026-20147
A vulnerability in Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. In si…
Scores
The facts
- Published
- 15 April 2026
- Last changed
- 25 September 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.9 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- Affects
- cisco identity services engine passive identity connector
- cisco identity services engine
- Known exploited
- Not in the CISA Known Exploited Vulnerabilities catalogue in this build.
- EPSS
- 10.4% chance of exploitation activity in the next 30 days (percentile 96).
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