CVE-2017-12240 · netVigilance record NV22-0129
Cisco IOS and IOS XE Software DHCP Remote Code Execution
past due
What to do
Apply updates per vendor instructions.
CISA deadline 2022-03-24 · passed 4 years 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
The Dynamic Host Configuration Protocol (DHCP) relay subsystem of Cisco IOS and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system.
Who is affected
Cisco IOS and IOS XE Software. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-20.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 5 months ago
Sources
- NVD entry for CVE-2017-12240 nvd.nist.gov/vuln/detail/CVE-2017-12240
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2017-12240