⚠ 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-2018-0167Improper Restriction of Operations within the Bounds of a Memory Buffer in Cisco IOS XR

Severity
8.8HIGHNVD
EPSS
1.2%
top 20.98%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-17
Exploit
Exploited in wild
Active exploitation observed
Timeline
PublishedMar 28
KEV addedMar 3
KEV dueMar 17
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.

Description

Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCuo17183, CSCvd73487.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages3 packages

NVDcisco/ios_xr4.15.1.3
NVDcisco/ios15.6.3m1+3
NVDcisco/ios_xe15.6.3m1+3

🔴Vulnerability Details

3
GHSA
GHSA-h85m-74j9-4r6m: Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco2022-05-13
CVEList
CVE-2018-0167: Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco2018-03-28
VulnCheck
Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability2018

📋Vendor Advisories

2
CISA
Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability2022-03-03
Cisco
Cisco IOS, IOS XE, and IOS XR Software Link Layer Discovery Protocol Buffer Overflow Vulnerabilities2018-03-28
CVE-2018-0167 — Cisco IOS XR vulnerability | cvebase