CVE-2026-76431
Last modified
CVE-2026-76431 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. A vulnerability in the file management function of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to delete arbitrary files and directories on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of directory traversal character sequences in a user-supplied file path before the request is validated. EPSS estimates a 1.21% chance of exploitation in the next 30 days.
Description
A vulnerability in the file management function of the web-based management interface of Cisco ISE and Cisco ISE-PIC could allow an authenticated, remote attacker to delete arbitrary files and directories on an affected device. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of directory traversal character sequences in a user-supplied file path before the request is validated. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to delete arbitrary files and directories on the underlying operating system of the affected device.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Cisco | Identity Services Engine | >= 3.1.0, < 3.3.0 | — |
| Cisco | Identity Services Engine | 3.3.0 | Patch1 |
| Cisco | Identity Services Engine | 3.4.0 | — |
| Cisco | Identity Services Engine | 3.5.0 | — |
| Cisco | Identity Services Engine Passive Identity Connector | >= 3.1.0, < 3.3.0 | — |
| Cisco | Identity Services Engine Passive Identity Connector | 3.3.0 | Patch1 |
| Cisco | Identity Services Engine Passive Identity Connector | 3.4.0 | — |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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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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