Risk Letters

Exploited vulnerability

CVE-2018-0173

TLP:CLEAR

Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets can allow for denial-of-service (DoS).

Facts

  • Vendor: Cisco
  • Product: IOS and IOS XE Software
  • CVSS: 8.6
  • EPSS (probability of exploitation within 30 days): 7.6 %
  • On CISA's Known Exploited Vulnerabilities list since: 3 March 2022
  • First known exploitation: 3 March 2022
  • CISA's deadline for US federal agencies: 17 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.

Get the full brief

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