# MA-1159.102024: MyCERT Advisory - Cisco Security Updates

**Date:** 02 Oct 2024  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-1159.102024  
**Advisory ID:** MA-1159.102024

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**1.0 Introduction**
Recently, Cisco released security updates to address vulnerability in Cisco Catalyst 9000 Series.
**2.0 Impact**
This vulnerability in Cisco IOS XE software could allow an unauthenticated, adjacent attacker to acuse a denial of service (DoS) condition on the control plane of an affected device.
**3.0 Affected Products**
- Catalyst 9300X Series Switches
- Catalyst 9400X Supervisor Engines
- Catalyst 9500 High Performance Series Switches
- Catalyst 9600 Series Switches
**4.0 Recommendations**
CyberSecurity Malaysia encourages users and administrators to review the following advisories and apply the necessary updates:
Kindly refer the URL below for more necessary information:
- <https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT>
For updates addressing lower severity vulnerabilities, see the [Cisco Security Advisories](https://sec.cloudapps.cisco.com/security/center/publicationListing.x) page.
Generally, Cyber999 advises the users of these devices to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact us through the following channels:
E-mail: cyber999[at]cybersecurity.my 
Phone: 1-300-88-2999 (monitored during business hours) 
Mobile: +60 19 2665850 (24x7 call incident reporting) 
Business Hours: Mon - Fri 08:30 -17:30 MYT 
Web: [https://www.mycert.org.my](https://www.mycert.org.my/)
**5.0    References**
- <https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vlan-dos-27Pur5RT>