CVE-2011-4016

Severity: medium (CVSS 5.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-05-02 · updated 2026-06-16
Weakness: CWE-20

Description

The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673.

Affected products

Cisco IOS: 12.2, 15.0, 15.1, 15.2

References

http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
http://www.securitytracker.com/id?1027005
http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html
http://www.securitytracker.com/id?1027005

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