# MA-1255.022025: MyCERT Advisory - Security Updates – Mozilla Products

**Date:** 07 Feb 2025  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-1255.022025  
**Advisory ID:** MA-1255.022025

---

**1.0 Introduction**
Recently, Mozilla has released security updates to address multiple high impact vulnerabilities including Firefox, Firefox ESR and Thunderbird.
**2.0 Impact**
These vulnerabilities could potentially lead an attacker to arbitrary code execution. 
**3.0 Affected Products**
- Firefox versions prior to 135
- Firefox ESR versions prior to 115.20 or 128.7
- Thunderbird versions prior to 135
- Thunderbird ESR versions prior to 128.7
**4.0 Recommendations**
CyberSecurity Malaysia encourages users and administrators to review the following advisories and apply the necessary updates:
Kindly refer to the following URLs for more information: 
- Firefox: <https://www.mozilla.org/en-US/security/advisories/mfsa2025-07/>
- Firefox ESR: <https://www.mozilla.org/en-US/security/advisories/mfsa2025-08/> & <https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/>
- Thunderbird: <https://www.mozilla.org/en-US/security/advisories/mfsa2025-11/>
- Thunderbird ESR: <https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/>
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 Rthe esponse 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.mycert.org.my](https://www.mycert.org.my/) 
**5.0    References**
- <https://www.mozilla.org/en-US/security/advisories/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2025-07/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2025-08/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2025-09/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2025-11/>
- <https://www.mozilla.org/en-US/security/advisories/mfsa2025-10/>