CVE-2013-6694

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-11-22 · updated 2026-06-17
Weakness: CWE-20

Description

The IPSec implementation in Cisco IOS allows remote attackers to cause a denial of service (MTU change and tunnel-session drop) via crafted ICMP packets, aka Bug ID CSCul29918.

Affected products

Cisco IOS: all versions

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6694
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6694

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