CVE-2020-3230

Cisco IOS and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerability

Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent IKEv2 from establishing new security associations. The vulnerability is due to incorrect handling of crafted IKEv2 SA-Init packets. An attacker could exploit this vulnerability by sending crafted IKEv2 SA-Init packets to the affected device. An exploit could allow the attacker to cause the affected device to reach the maximum incoming negotiation limits and prevent further IKEv2 security associations from being formed.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.96% Top 20%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS 15.1(2)T
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ikev2-9p23Jj2a vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-3230?
CVE-2020-3230 has been scored as a high severity vulnerability.
How to fix CVE-2020-3230?
To fix CVE-2020-3230, 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-2020-3230 being actively exploited in the wild?
It is possible that CVE-2020-3230 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.
What software or system is affected by CVE-2020-3230?
CVE-2020-3230 affects Cisco Cisco IOS 15.1(2)T.
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