AEGLIX vulnerability intelligence
CVE-2018-0167
HIGH · CVSS 8.8 · Analyzed
Published: 2018-03-28 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 8.8 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-119
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Cisco · IOS, XR, and XE Software
- Added to catalog
- 2022-03-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-03-17
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:cisco:ios:5.2.0.base:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:5.2.0.base:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
From (inclusive): 4.1
Before (exclusive): 5.1.3
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Through (inclusive): 15.6.3m1
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Through (inclusive): 15.6.3m1
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Through (inclusive): 15.2\(6\)e0a
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Through (inclusive): 15.2\(6\)e0a
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Through (inclusive): 15.2\(4a\)ea5
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
Through (inclusive): 15.2\(4a\)ea5
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://www.securityfocus.com/bid/103564
Broken Link · Third Party Advisory · VDB Entry
- http://www.securitytracker.com/id/1040586
Broken Link · Third Party Advisory · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
Third Party Advisory · US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
Third Party Advisory · US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
Third Party Advisory · US Government Resource
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp
Vendor Advisory
- http://www.securityfocus.com/bid/103564
Broken Link · Third Party Advisory · VDB Entry
- http://www.securitytracker.com/id/1040586
Broken Link · Third Party Advisory · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
Third Party Advisory · US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
Third Party Advisory · US Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
Third Party Advisory · US Government Resource
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-lldp
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0167
US Government Resource