VULNERABILITY INTELLIGENCE

CVE-2013-5476

CVSS score7.8 HIGH
EPSS probability1.89%
CISA KEVNot currently listed
Published2013-09-27
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:N/A:C

Description

The Zone-Based Firewall (ZFW) feature in Cisco IOS 15.1 through 15.2, when content filtering or HTTP ALG inspection is enabled, allows remote attackers to cause a denial of service (device reload or hang) via crafted IPv4 HTTP traffic, aka Bug ID CSCtx56174.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references