What’s Vulnerable › Vulnerabilities
CVE-2025-20240
- Severity: medium (CVSS 6.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-09-24 · updated 2026-09-26
- Weakness: CWE-692
Description
A vulnerability in the Web Authentication feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting attack (XSS) on an affected device. This vulnerability is due to improper sanitization of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a malicious link. A successful exploit could allow the attacker to execute a reflected XSS attack and steal user cookies from the affected device.
Affected products
- Cisco IOS XE: 16.6.1, 16.6.2, 16.6.3, 16.6.4, 16.6.5, 16.6.4a (+210)
References
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