CVE-2026-20136
Last modified
CVE-2026-20136 is a medium-severity vulnerability rated 6/10 on the CVSS scale. A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
A vulnerability in the CLI of Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, local attacker with administrative privileges to perform a command injection attack on the underlying operating system and elevate privileges to root. This vulnerability is due to insufficient validation of user supplied input. An attacker could exploit this vulnerability by providing crafted input to a specific CLI command. A successful exploit could allow the attacker to elevate their privileges to root on the underlying operating system.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Identity Services Engine | < 3.3.0 |
| Cisco | Identity Services Engine | 3.3.0 |
| Cisco | Identity Services Engine | 3.4.0 |
| Cisco | Identity Services Engine | 3.5.0 |
| Cisco | Identity Services Engine Passive Identity Connector | < 3.3.0 |
| Cisco | Identity Services Engine Passive Identity Connector | 3.3.0 |
| Cisco | Identity Services Engine Passive Identity Connector | 3.4.0 |
| Cisco | Identity Services Engine Passive Identity Connector | 3.5.0 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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