All vulnerabilities
CVE-2017-12240

Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

Cisco IOS and IOS XE SoftwareOperating systems
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 3 Mar 2022CISA KEV
Exploit odds (EPSS)13.8%Chance of exploitation activity in the next 30 days, higher than 96% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline24 Mar 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 28 Sep 2017, 07:00 UTCPublishedCVE List
  2. 3 Mar 2022Added to CISA KEVCISA KEV

Description

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.

Text from CVE List

Affected versions 1

  • Cisco IOS and IOS XEaffected: Cisco IOS and IOS XECVE List

References 5