CVE-2008-3821: Cisco IOS

Medium severity, CVSS 4.3. EPSS: 5.4% chance of exploitation in the next 30 days.

Multiple cross-site scripting (XSS) vulnerabilities in the HTTP server in Cisco IOS 11.0 through 12.4 allow remote attackers to inject arbitrary web script or HTML via (1) the query string to the ping program or (2) unspecified other aspects of the URI.

Affected products

• Cisco IOS: version 12.0 only; version 12.0da only; version 12.0db only; version 12.0dc only; version 12.0s only; version 12.0sc only; …

Published 2009-01-16. Last modified 2026-06-16.