high
7.8
CWE
399
Advisory Published
Updated

CVE-2015-0643

First published: Thu Mar 26 2015(Updated: )

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.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE Web UI=3.2s.0
Cisco IOS XE Web UI=3.2s.1
Cisco IOS XE Web UI=3.2s.2
Cisco IOS XE Web UI=3.3sg.0
Cisco IOS XE Web UI=3.3sg.1
Cisco IOS XE Web UI=3.3sg.2
Cisco IOS XE Web UI=3.3xo.0
Cisco IOS XE Web UI=3.3xo.1
Cisco IOS XE Web UI=3.3xo.2
Cisco IOS XE Web UI=3.4s.0
Cisco IOS XE Web UI=3.4s.1
Cisco IOS XE Web UI=3.4s.2
Cisco IOS XE Web UI=3.4s.3
Cisco IOS XE Web UI=3.4s.4
Cisco IOS XE Web UI=3.4s.5
Cisco IOS XE Web UI=3.4s.6
Cisco IOS XE Web UI=3.4sg.0
Cisco IOS XE Web UI=3.4sg.1
Cisco IOS XE Web UI=3.4sg.2
Cisco IOS XE Web UI=3.4sg.3
Cisco IOS XE Web UI=3.4sg.4
Cisco IOS XE Web UI=3.4sg.5
Cisco IOS XE Web UI=3.5e.0
Cisco IOS XE Web UI=3.5e.1
Cisco IOS XE Web UI=3.5e.2
Cisco IOS XE Web UI=3.5e.3
Cisco IOS XE Web UI=3.5s.0
Cisco IOS XE Web UI=3.5s.1
Cisco IOS XE Web UI=3.5s.2
Cisco IOS XE Web UI=3.5s_base
Cisco IOS XE Web UI=3.6e.0
Cisco IOS XE Web UI=3.6e.1
Cisco IOS XE Web UI=3.6s.0
Cisco IOS XE Web UI=3.6s.1
Cisco IOS XE Web UI=3.6s.2
Cisco IOS XE Web UI=3.6s_base
Cisco IOS XE Web UI=3.7s.1
Cisco IOS XE Web UI=3.7s.2
Cisco IOS XE Web UI=3.7s.3
Cisco IOS XE Web UI=3.7s.4
Cisco IOS XE Web UI=3.7s.5
Cisco IOS XE Web UI=3.7s.6
Cisco IOS XE Web UI=3.7s_base
Cisco IOS XE Web UI=3.8s.0
Cisco IOS XE Web UI=3.8s.1
Cisco IOS XE Web UI=3.8s.2
Cisco IOS XE Web UI=3.8s_base
Cisco IOS XE Web UI=3.9s.0
Cisco IOS XE Web UI=3.9s.1
Cisco IOS XE Web UI=3.9s.2
Cisco IOS XE Web UI=3.10s.0
Cisco IOS XE Web UI=3.10s.0a
Cisco IOS XE Web UI=3.10s.1
Cisco IOS XE Web UI=3.10s.2
Cisco IOS XE Web UI=3.11s.0
Cisco IOS XE Web UI=3.11s.1
Cisco IOS=12.2
Cisco IOS=12.4
Cisco IOS=15.0
Cisco IOS=15.1
Cisco IOS=15.2
Cisco IOS=15.3
Cisco IOS=15.4

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-0643?

    CVE-2015-0643 has been assigned a high severity rating due to its potential to cause denial of service through memory consumption and device reloads.

  • How do I fix CVE-2015-0643?

    To mitigate CVE-2015-0643, it is recommended to upgrade to the appropriate patches provided by Cisco for your affected IOS or IOS XE version.

  • Which versions are affected by CVE-2015-0643?

    CVE-2015-0643 affects Cisco IOS versions 12.2, 12.4, 15.0 through 15.4, and IOS XE versions 2.5.x through 3.12.xS before upgrades were implemented.

  • What type of vulnerability is CVE-2015-0643?

    CVE-2015-0643 is a denial of service vulnerability that allows remote attackers to disrupt services on affected devices.

  • When was CVE-2015-0643 disclosed?

    CVE-2015-0643 was publicly disclosed on March 25, 2015, coinciding with Cisco's security advisory announcement.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203