CVE-2023-20109

Cisco IOS and IOS XE contain an out-of-bounds write vulnerability in the Group Encrypted Transport VPN (GET VPN) feature that could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute malicious code or cause a device to crash. Vendor/Product: Cisco IOS and IOS XE. Added to CISA KEV 2023-10-10; required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.