Vendor / Project: Cisco Product: IOS and IOS XE Description: 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. Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Due Date: 2023-10-31 Ransomware Campaign Use: Unknown CWEs: CWE-787 Notes: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-getvpn-rce-g8qR68sx; https://nvd.nist.gov/vuln/detail/CVE-2023-20109