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ExploitedIn CISA KEVFix available

CVE-2018-0167

Exploitation confirmed. First attested on 2022-03-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2018-03-28
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2018-03-2822:29CVE publishedNVD
  2. 2022-03-03Added to the CISA KEV catalogCISA KEV
  3. 2022-03-03Listed as exploited by GCVEGCVE
  4. 2022-03-03Exploitation first reportedCISA KEV
  5. 2024-11-0817:25SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 03:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-0167?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-0167?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco iosversion to verify
BranchAffectedFixed in
5.2= 5.2.0.baseno fix published
15.6≤ 15.6.3m1no fix published
15.2≤ 15.2\(6\)e0ano fix published
15.2≤ 15.2\(4a\)ea5no fix published
Cisco ios xeversion to verify
BranchAffectedFixed in
5.2= 5.2.0.baseno fix published
15.6≤ 15.6.3m1no fix published
15.2≤ 15.2\(6\)e0ano fix published
15.2≤ 15.2\(4a\)ea5no fix published
Cisco ios xrversion to verify
BranchAffectedFixed in
5.1≥ 4.1, < 5.1.35.1.3

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As cisco, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Cisco IOS, IOS XE, and IOS XR
    Affected
    • = Cisco IOS, IOS XE, and IOS XRno fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2018-04-19

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-18-107-03 CISA1 known affected

    ICSA-18-107-03_Rockwell Automation Stratix Services Router

    Allen-Bradley Stratix 5900 Services Router: version 15.6.3M1 and earlier

  • ICSA-18-107-04 CISA5 known affected

    Rockwell Automation Stratix and ArmorStratix Switches

    Allen-Bradley Stratix 5400 Industrial Ethernet Switches: versions 15.2(6)E0a and earlier; · Allen-Bradley Stratix 8000 Modular Managed Ethernet Switches: versions 15.2(6)E0a and earlier; · Allen-Bradley Stratix 5410 Industrial Distribution Switches: versions 15.2(6)E0a and earlier; · +2 more

  • ICSA-18-107-05 CISA1 known affected

    ICSA-18-107-05_Rockwell Automation Stratix Industrial Managed Ethernet Switch

    Allen-Bradley Stratix 8300 Industrial Managed Ethernet Switches: versions 15.2(4a)EA5 and earlier

Full record on NVD

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-03-17
  2. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productRockwell Automation has released the following knowledge base article 1073315
  3. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productCisco has released new Snort Rules
  4. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productSmart Install is turned off by express setup
  5. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productCVE-2018-0167 and CVE-2018-0175 have no specific mitigations in place.
  6. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productHelp minimize network exposure for all control system devices and/or systems, and confirm that they are not accessible from the Internet.
  7. Mitigation from the vendor CISA ICSA-18-107-05 · 1 productLocate control system networks and devices behind firewalls, and isolate them from the business network.

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-03-03
Patch Due Date
2022-03-17
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-03-28
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-h85m-74j9-4r6m

Frequently asked questions

What is CVE-2018-0167?

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.

Is CVE-2018-0167 actively exploited?

Yes. CVE-2018-0167 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-03-17.

What is the CVSS score for CVE-2018-0167?

CVE-2018-0167 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record