CVE-2015-0643

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-03-26 · updated 2026-06-17
Weakness: CWE-399

Description

Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS through 3.12.xS before 3.12.3S, 3.2.xE through 3.7.xE before 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS before 3.13.2S allow remote attackers to cause a denial of service (memory consumption and device reload) by sending malformed IKEv2 packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCuo75572.

Affected products

Cisco IOS: 12.2, 12.4, 15.0, 15.1, 15.2, 15.3 (+1)
Cisco IOS XE: 3.2s.0, 3.2s.1, 3.2s.2, 3.3sg.0, 3.3sg.1, 3.3sg.2 (+50)

References

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-ikev2
http://tools.cisco.com/security/center/viewAlert.x?alertId=37815
http://www.securityfocus.com/bid/73333
http://www.securitytracker.com/id/1031978
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-ikev2
http://tools.cisco.com/security/center/viewAlert.x?alertId=37815
http://www.securityfocus.com/bid/73333
http://www.securitytracker.com/id/1031978

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