Cisco IOS, IOS XR, and IOS XE IKEv1 Information Disclosure Vulnerability
CISA lists this Cisco IOS, IOS XR, and IOS XE vulnerability as known exploited. The vendor's advisory has the fixed versions.
CISA catalog record
Cisco IOS, IOS XR, and IOS XE contain insufficient condition checks in the part of the code that handles Internet Key Exchange version 1 (IKEv1) security negotiation requests. contains an information disclosure vulnerability in the Internet Key Exchange version 1 (IKEv1) that could allow an attacker to retrieve memory contents. Successful exploitation could allow the attacker to retrieve memory contents, which can lead to information disclosure.
- Product
- IOS, IOS XR, and IOS XE
- Added to KEV
- 19 May 2023
- Federal remediation due
- 9 Jun 2023
- Known ransomware use
- Not reported
What changed
First observed 14 Oct 2026No field changes in the recorded history.
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