CVE-2011-4231

Severity: medium (CVSS 6.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2012-05-03 · updated 2026-06-16
Weakness: CWE-20

Description

Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in use, allows remote authenticated users to cause a denial of service (segmentation fault and device crash) via unspecified vectors, aka Bug ID CSCtq61128.

Affected products

Cisco IOS: 15.1, 15.2
Cisco IOS XE: 3.1.0s, 3.1.0sg, 3.1.1s, 3.1.1sg, 3.1.2s, 3.1.3s (+17)

References

http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-4MCAVS.html
http://www.cisco.com/en/US/docs/ios/ios_xe/3/release/notes/asr1k_caveats_34s.html
http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-4MCAVS.html
http://www.cisco.com/en/US/docs/ios/ios_xe/3/release/notes/asr1k_caveats_34s.html

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