CVE-2023-20109β€”Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability

PUBLISHEDvulnerability record
2023-10-10 Β· last modified June 21, 2025

Metadata

CVE ID:
CVE-2023-20109
Project:
Cisco
Product:
IOS and IOS XE
Date Added:
2023-10-10
Due Date:
2023-10-31
Last Updated:
June 21, 2025

Vulnerability Name

Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability

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.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Additional Notes

  • https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-getvpn-rce-g8qR68sx
  • https://nvd.nist.gov/vuln/detail/CVE-2023-20109

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