⚠ Actively exploited
Added to CISA KEV on 2022-03-03. Federal agencies required to patch by 2022-03-17. Required action: Apply updates per vendor instructions..
CVE-2018-0174 — Improper Input Validation in Cisco IOS
Severity
8.6HIGHNVD
EPSS
5.4%
top 9.82%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-17
Exploit
Exploited in wild
Active exploitation observed
Affected products
Timeline
PublishedMar 28
KEV addedMar 3
KEV dueMar 17
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.
Description
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending …
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:HExploitability: 3.9 | Impact: 4.0
Affected Packages2 packages
🔴Vulnerability Details
3GHSA▶
GHSA-qcqh-fmx4-f33r: A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remo↗2022-05-13
CVEList▶
CVE-2018-0174: A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remo↗2018-03-28