1.0 Introduction
Recently, Mozilla has released security updates to address multiple vulnerabilities in its product.
2.0 Impact
These vulnerabilities could allow attackers to escape the browser sandbox, execute arbitrary code, or spoof trusted websites.
3.0 Affected Products
- Thunderbird versions prior to 140.3
- Thunderbird versions prior to 143
- Focus for iOS versions prior to143.0
- Firefox ESR versions prior to 140.3
- Firefox ESR versions prior to 115.28
- Firefox versions prior to 143
4.0 Recommendations
CyberSecurity Malaysia encourages users and administrators to review the following
Mozilla security advisory
and apply the necessary updates:
Kindly refer to the following URLs for more information:
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-80/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-79/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-78/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-77/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-76/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-75/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-74/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-73/
Generally, we advise 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 Cyber999 Incident the Response Centre 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.cybersecurity.my
5.0 References
- https://www.mozilla.org/en-US/security/advisories/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-80/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-79/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-78/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-77/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-76/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-75/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-74/
- https://www.mozilla.org/en-US/security/advisories/mfsa2025-73/