CVE-2026-20112
A vulnerability in the web-based Cisco IOx application hosting environment management interface of Cisco IOS XE Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker must have valid administrative credentials.
EPSS 0.04% · 13.2th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco IOS XE Software | 16.6.1, 16.6.6, 16.6.3 |
Exploit Intelligence
- CIRCL seen: CVE-2026-20112 (circl-sighting)
- cisco-sa-iox-xss-LpGkzwtJ (circl)
Timeline
- Mar 25, 2026 Coalition ESS Score
- Mar 25, 2026 CVE Published
- Mar 26, 2026 PoC Published
- Mar 27, 2026 CVE Updated
- Mar 29, 2026 Security Advisory
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score