CVE-2008-3808: Cisco IOS

High severity, CVSS 7.8. EPSS: 3.4% chance of exploitation in the next 30 days.

Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted Protocol Independent Multicast (PIM) packet.

Affected products

• Cisco IOS: version 12.0 only; version 12.0da only; version 12.0db only; version 12.0s only; version 12.0sl only; version 12.0sp only; …

Published 2008-09-26. Last modified 2026-06-16.