CVE-2023-20109 · netVigilance record NV23-0148
Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write
past due
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA deadline 2023-10-31 · passed 2 years 10 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Cisco IOS and IOS XE. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-787.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 years 10 months ago
Sources
- NVD entry for CVE-2023-20109 nvd.nist.gov/vuln/detail/CVE-2023-20109
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- sec.cloudapps.cisco.com sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-getvpn-rce-g8qR68sx
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2023-20109