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Alert: Mozilla Security Updates – October 2023

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system.
Affected Systems
Security Risks
The identified vulnerabilities in Mozilla Firefox, Firefox ESR, and Thunderbird pose a security risk, allowing cyber-attacks. They can lead to memory corruption, code execution, data compromise, system control, and unauthorized access.
Recommended Actions
The National Cyber Security Authority (NCSA) strongly recommends to system administrators to:
  • Follow Mozilla's Security Advisories to lower the risk of potential exploits, protect systems, and ensure their security.
  • Apply the required and latest security updates as soon as possible.
        The released software version to upgrade to are:
  • Before any update task, please ensure you have a recent backup that can easily be restored.
For further information and support, please contact NCSA by email at or call us on 9009.

30 October 2023

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