peter bassill · operator
$ cve CVE-2018-0172 JSON

CVE-2018-0172 KEV

8.6
HIGH · CVSS 3.1 · EPSS 7.8% (pctl 94)

Patch first

On CISA KEV — known exploited in the wild, due 2022-03-17.

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 a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730.

Scoring

CVSS8.6 (HIGH, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS7.82% — more likely to be exploited than 94% of all CVEs
WeaknessCWE-20
On CISA KEVyes — remediate by 2022-03-17
Public exploitnone known
Published2018-03-28
Last modified2026-06-17

CISA KEV

NameCisco IOS and IOS XE Software Improper Input Validation Vulnerability
Added2022-03-03
Due2022-03-17
Vendor / productCisco / IOS and IOS XE Software
Ransomware usenone reported

Affected (8)

VendorProduct
ciscoios
ciscoios xe
rockwellautomationallen-bradley armorstratix 5700
rockwellautomationallen-bradley stratix 5400
rockwellautomationallen-bradley stratix 5410
rockwellautomationallen-bradley stratix 5700
rockwellautomationallen-bradley stratix 8000
rockwellautomationallen-bradley stratix 8300

References

→ the Explorer  ·  watch your stack  ·  NVD