What is CVE-2018-0161?

CVE-2018-0161 is a medium-severity vulnerability in Cisco Catalyst 2960l-16ps-Ll, classified under CWE-399. CVSS score: 6.3/10. Published 2018-03-28.

How severe is CVE-2018-0161?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Is CVE-2018-0161 known to be exploited?

Yes. CVE-2018-0161 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Vulnerability in Cisco Catalyst 2960l-16ps-Ll

CVE-2018-0161

A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition, aka a GET MIB Object ID Denial of Service Vulnerability. The vulnerability is due to a condition that could occur when the affected software processes an SNMP read request that contains a request for the ciscoFlashMIB object ID (OID). An attacker could trigger this vulnerability by issuing an SNMP GET request for the ciscoFlashMIB OID on an affected device. A successful exploit could cause the affected device to restart due to a SYS-3-CPUHOG. This vulnerability affects the following Cisco devices if they are running a vulnerable release of Cisco IOS Software and are configured to use SNMP Version 2 (SNMPv2) or SNMP Version 3 (SNMPv3): Cisco Catalyst 2960-L Series Switches, Cisco Catalyst Digital Building Series Switches 8P, Cisco Catalyst Digital Building Series Switches 8U. Cisco Bug IDs: CSCvd89541.

Published 2018-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.041 (90.7th percentile), scored 2026-10-18.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.041 · newest: 0.041 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-399

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-03-17.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

www.securityfocus.com/bid/103573 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328… (Mitigation, Vendor Advisory)
www.securitytracker.com/id/1040589 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-0161?: CVE-2018-0161 is a medium-severity vulnerability in Cisco Catalyst 2960l-16ps-Ll, classified under CWE-399. CVSS score: 6.3/10. Published 2018-03-28.
How severe is CVE-2018-0161?: Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2018-0161 known to be exploited?: Yes. CVE-2018-0161 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.