CVE-2013-5663: Palo Alto Networks PAN-OS

Medium severity, CVSS 4.3. EPSS: 2.8% chance of exploitation in the next 30 days.

The App-ID cache feature in Palo Alto Networks PAN-OS before 4.0.14, 4.1.x before 4.1.11, and 5.0.x before 5.0.2 allows remote attackers to bypass intended security policies via crafted requests that trigger invalid caching, as demonstrated by incorrect identification of HTTP traffic as SIP traffic, aka Ref ID 47195.

Affected products

• Palo Alto Networks PAN-OS: up to and including 4.0.8; version 4.0.0 only; version 4.0.1 only; version 4.0.2 only; version 4.0.3 only; version 4.0.4 only; …

Published 2013-08-31. Last modified 2026-06-16.