CVE-2018-0161 (GCVE-0-2018-0161)

Vulnerability from cvelistv5 – Published: 2018-03-28 22:00 – Updated: 2026-01-12 21:56
VLAI? CISA KEV
Summary
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.
Severity ?
6.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
Assigner
References
URL Tags
http://www.securityfocus.com/bid/103573 vdb-entryx_refsource_BID
https://tools.cisco.com/security/center/content/C… x_refsource_CONFIRM
http://www.securitytracker.com/id/1040589 vdb-entryx_refsource_SECTRACK
Impacted products
Vendor Product Version
n/a Cisco IOS Affected: Cisco IOS
Date Public ?
2018-03-28 00:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 686a6669-c852-421f-b3ce-cd57f8759516

Vulnerability ID: CVE-2018-0161

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEV entry: Cisco IOS Software Resource Management Errors Vulnerability | Affected: Cisco / IOS Software | 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. | Required action: Apply updates per vendor instructions. | Due date: 2022-03-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-0161
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-399
Feed CISA Known Exploited Vulnerabilities Catalog
Product IOS Software
Due Date 2022-03-17
Date Added 2022-03-03
Vendorproject Cisco
Vulnerabilityname Cisco IOS Software Resource Management Errors Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Show details on NVD website
To clipboard 

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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.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en el subsistema Simple Network Management Protocol (SNMP) de Cisco IOS Software que ejecuta determinados modelos de Cisco Catalyst Switches podr\u00eda permitir que un atacante remoto autenticado provoque una denegaci\u00f3n de servicio (DoS). Esto tambi\u00e9n se conoce como vulnerabilidad GET MIB Object ID Denial of Service. Esta vulnerabilidad se debe a una condici\u00f3n que podr\u00eda ocurrir cuando el software afectado procesa una petici\u00f3n de lectura SNMP que contiene una petici\u00f3n para el ID de objeto (OID) de ciscoFlashMIB. Un atacante podr\u00eda desencadenar esta vulnerabilidad enviando una petici\u00f3n SNMP GET para el OID de ciscoFlashMIB en un dispositivo afectado Un exploit con \u00e9xito podr\u00eda provocar que el dispositivo afectado se reinicie debido a un SYS-3-CPUHOG. Esta vulnerabilidad afecta a los siguientes dispositivos Cisco en caso de que ejecuten una distribuci\u00f3n vulnerable de Cisco IOS Software y que est\u00e9n configurados para utilizar SNMP Version 2 (SNMPv2) o 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: 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  }
}


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Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.