Risk Letters

Exploited vulnerability

CVE-2017-12240

TLP:CLEAR

Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

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.

Facts

  • Vendor: Cisco
  • Product: IOS and IOS XE Software
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 13.8 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 March 2022
  • First known exploitation: 3 March 2022
  • CISA's deadline for US federal agencies: 24 March 2022
  • Weakness: CWE-20
  • First seen by Risk Letters: 3 March 2022

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD