CVE-2015-0643

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.

Category

7.8
CVSS
Severity: High
CVSS 2.0 •
EPSS 1.80% Top 20%
Vendor Advisory cisco.com Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2015-0643?
CVE-2015-0643 has been scored as a high severity vulnerability.
How to fix CVE-2015-0643?
To fix CVE-2015-0643, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-0643 being actively exploited in the wild?
It is possible that CVE-2015-0643 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.