CVE-2013-5476

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-09-27 · updated 2026-06-16
Weakness: CWE-20

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.

Affected products

Cisco IOS: 15.1, 15.2

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-cce
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-cce

Get alerted when CVE-2013-5476 or the next vulnerability affects your stack