CVE-2018-0161
Detail
Description
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:M/Au:S/C:N/I:N/A:C)
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This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference
CISA's BOD 22-01 and Known
Exploited Vulnerabilities Catalog for further guidance and requirements.
Vulnerability Name
Date Added
Due Date
Required Action
Cisco IOS Software Resource Management Errors Vulnerability
03/03/2022
03/17/2022
Apply updates per vendor instructions.
Weakness Enumeration
CWE-ID
CWE Name
Source
NVD-CWE-noinfo
Insufficient Information
NIST
CWE-399
Resource Management Errors
Cisco Systems, Inc.
Change History
17 change records found show changes
Modified Analysis by NIST 1/14/2026 1:44:25 PM
Action
Type
Old Value
New Value
CVE Modified by CISA-ADP 1/12/2026 5:16:02 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Modified Analysis by NIST 10/28/2025 9:54:24 AM
Action
Type
Old Value
New Value
Added
Reference Type
CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0161 Types: US Government Resource
CVE Modified by CISA-ADP 10/21/2025 8:16:14 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0161
CVE Modified by CISA-ADP 10/21/2025 4:17:04 PM
Action
Type
Old Value
New Value
Removed
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0161
CVE Modified by CISA-ADP 10/21/2025 3:17:20 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0161
Modified Analysis by NIST 1/27/2025 3:17:38 PM
Action
Type
Old Value
New Value
CVE Modified by CVE 11/20/2024 10:37:38 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/bid/103573
Added
Reference
http://www.securitytracker.com/id/1040589
Added
Reference
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp
Modified Analysis by NIST 7/16/2024 1:24:41 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Removed
CVSS V3
NIST AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Changed
CPE Configuration
AND
OR
cpe:2.3:h:cisco:catalyst_2960l-16ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-16ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8u:-:*:*:*:*:*:*:*
OR
*cpe:2.3:o:cisco:ios:15.2\(5\)e:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:15.2\(5\)e:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:catalyst_2960l-16ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-16ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8u:-:*:*:*:*:*:*:*
Changed
Reference Type
http://www.securityfocus.com/bid/103573 Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/103573 Broken Link, Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.securitytracker.com/id/1040589 Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040589 Broken Link, Third Party Advisory, VDB Entry
CVE Modified by Cisco Systems, Inc. 5/14/2024 12:50:31 AM
Action
Type
Old Value
New Value
CVE Modified by Cisco Systems, Inc. 10/09/2019 7:31:21 PM
Action
Type
Old Value
New Value
Added
CWE
Cisco Systems, Inc. CWE-399
CWE Remap by NIST 10/02/2019 8:03:26 PM
Action
Type
Old Value
New Value
Changed
CWE
CWE-399
CWE-399
NVD-CWE-noinfo
CVE Modified by Cisco Systems, Inc. 5/24/2019 1:29:01 PM
Action
Type
Old Value
New Value
Removed
Reference
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html [No Types Assigned]
CVE Modified by Cisco Systems, Inc. 4/23/2019 3:31:25 PM
Action
Type
Old Value
New Value
Added
Reference
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html [No Types Assigned]
Initial Analysis by NIST 4/23/2018 4:36:08 PM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Added
CVSS V2
(AV:N/AC:M/Au:S/C:N/I:N/A:C)
Added
CWE
CWE-399
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:15.2\(5\)e:*:*:*:*:*:*:*
OR
cpe:2.3:h:cisco:catalyst_2960l-16ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-16ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-24ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48pq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48tq-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-48ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ps-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_2960l-8ts-ll:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_digital_building_series_switches-8u:-:*:*:*:*:*:*:*
Changed
Reference Type
http://www.securityfocus.com/bid/103573 No Types Assigned
http://www.securityfocus.com/bid/103573 Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.securitytracker.com/id/1040589 No Types Assigned
http://www.securitytracker.com/id/1040589 Third Party Advisory, VDB Entry
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp No Types Assigned
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-snmp Mitigation, Vendor Advisory
CVE Modified by Cisco Systems, Inc. 4/03/2018 9:29:02 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/bid/103573 [No Types Assigned]
CVE Modified by Cisco Systems, Inc. 3/29/2018 9:29:01 PM
Action
Type
Old Value
New Value
Added
Reference
http://www.securitytracker.com/id/1040589 [No Types Assigned]
Quick Info
CVE Dictionary Entry: CVE-2018-0161 NVD
Published Date: 03/28/2018 NVD
Last Modified: 01/14/2026
Source: Cisco Systems, Inc.