# MA-938.052023: MyCERT Advisory - Mozilla Releases Security Advisories for Multiple Products

**Date:** 16 May 2023  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-938.052023  
**Advisory ID:** MA-938.052023

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**1.0 Introduction**
Recently, Mozilla has released security advisories to address vulnerabilities in Thunderbird, Firefox and Firefox ESR.
**2.0 Impact**
A cyber threat actor could exploit some of these vulnerabilities to take control of an affected system.
**3.0 Affected Products**
Mozilla Thunderbird, Firefox and Firefox ESR
**4.0 Recommendations**
MyCERT encourages users and administrators to review the following advisories and apply the necessary updates:
- Security Vulnerabilities fixed in Firefox 113 [Mozilla Foundation Security Advisory 2023-16](https://www.mozilla.org/en-US/security/advisories/mfsa2023-16/) - <https://www.mozilla.org/en-US/security/advisories/mfsa2023-16/>
- Security Vulnerabilities fixed in Firefox ESR 102.11 [Mozilla Foundation Security Advisory 2023-17](https://www.mozilla.org/en-US/security/advisories/mfsa2023-17/) - <https://www.mozilla.org/en-US/security/advisories/mfsa2023-17/>
- Security Vulnerabilities fixed in Thunderbird 102.11 [Mozilla Foundation Security Advisory 2023-18](https://www.mozilla.org/en-US/security/advisories/mfsa2023-18/) - <https://www.mozilla.org/en-US/security/advisories/mfsa2023-18/>
For updates addressing lower severity vulnerabilities, see the [Mozilla Foundation Security Advisories](https://www.mozilla.org/en-US/security/advisories/) page.
Generally, MyCERT advises the users of this 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 MyCERT 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 09:00 -18:00 MYT 
Web: <https://www.mycert.org.my> 
Twitter: <https://twitter.com/mycert> 
Facebook: <https://www.facebook.com/mycert.org.my>
**5.0    References**
- <https://www.cisa.gov/news-events/alerts/2023/05/09/mozilla-releases-security-advisories-multiple-products>
- <https://www.mozilla.org/en-US/security/advisories/>