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Security Alert: Cisco Security Updates – September 2026

Cisco has released security updates to address multiple vulnerabilities across its products, including a critical issue identified as CVE-2026-20079 in Secure Firewall Management Center (FMC). These vulnerabilities could allow attackers to compromise affected systems. 

  

Affected products include but are not limited to: 

  

Security Risks 

  

The identified vulnerabilities pose a severe security risk, as they may allow attackers to gain unauthorized access, execute arbitrary code, or obtain sensitive information. Leveraging these vulnerabilities could result in full system compromise and disruption of essential operations. 

  

 For the full list of security patches released by Cisco, please refer to Cisco Security Advisories. 

  

Recommended Actions 

  

The National Cyber Security Authority (NCSA) recommends users and system administrators to: 

  

  • Follow and put in place the security updates shared by Cisco to lower the risk of vulnerability exploitation. 

  

  • Before updating or patching, please ensure that you have the latest backup that can easily be restored. 

  

For further information and support, please contact the National Cyber Security Authority (NCSA) by email to rwcsirt@ncsa.gov.rw or call us on 9009. 

 

  

References