Mozilla security advisory (AV25-285)

Serial number: AV25-285
Date: May 20, 2025

On May 17 and 20, 2025, Mozilla published security advisories to address vulnerabilities in the following products:

  • Thunderbird – versions prior to 128.10.2
  • Thunderbird – versions prior to 138.0.2
  • Firefox ESR – versions prior to 115.23.1
  • Firefox ESR – versions prior to 128.10.1
  • Firefox – versions prior to 138.0.4

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

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