Multiple Cisco products vulnerable to denial-of-service (DoS)


The SSH implementation in multiple Cisco products contains a denial-of-service (DoS) vulnerability.

Hisashi Kojima, Masahiro Nakada of Fujitsu Laboratories Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V2 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Low
  • Authentication: None
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: Complete
Affected Products

Cisco Systems, Inc.
  • Cisco Small Business 200 Series Smart Switch software and prior
  • Cisco Small Business 200 Series Smart Switch ( and prior)
  • Cisco Small Business 300 Series Managed Switch ( and prior)
  • Cisco Small Business 500 Series Stackable Managed Switch ( and prior)

A wide range of products are affected.

For more information, refer to the advisory provided by the developer.

A remote attacker may be able to cause a denial-of-service (DoS).

[Apply an update]
Update to the latest version according to the information provided by the developer.
Vendor Information

Cisco Systems, Inc.
CWE (What is CWE?)

  1. No Mapping(CWE-noinfo) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2013-1154

  1. JVN : JVN#05132866
  2. National Vulnerability Database (NVD) : CVE-2013-1154
  3. IPA SECURITY ALERTS : Security Alert for Vulnerability in Multiple Cisco Products (Japanese Only)
Revision History

  • [2013/03/07]
      Web page was published
      Affected Products : Contents was updated