TTPwire Vol. 1 · MITRE ATT&CK·Tagged

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CIS Advisories

Multiple Vulnerabilities in Mozilla Products Could Allow for Arbitrary Code Execution

2025-12-09 · Read original ↗

ATT&CK techniques detected

3 predictions
T1068Exploitation for Privilege Escalation
58%
"2025 - 14332 ) - memory safety bugs fixed in firefox esr 140. 6, thunderbird esr 140. 6, firefox 146 and thunderbird 146. ( cve - 2025 - 14333 ) additional lower severity vulnerabilities include : - use - after - free in the audio / video. ( cve - 2025 - 14326 ) - spoofing issue …"
T1068Exploitation for Privilege Escalation
41%
"in the enterprise, only using the latest version of browsers and email clients provided through the vendor. - apply the principle of least privilege to all systems and services. run all software as a non - privileged user ( one without administrative privileges ) to diminish the …"
T1190Exploit Public-Facing Application
40%
". systems affected : - firefox versions prior to 146 - firefox esr versions prior to 115. 31 - firefox esr versions prior to 140. 6 risk : government : businesses : home users : technical summary : multiple vulnerabilities have been discovered in mozilla products, the most severe…"

Summary

Multiple vulnerabilities have been discovered in Mozilla products, the most severe of which could allow for arbitrary code execution. 

  • Mozilla Firefox is a web browser used to access the Internet.
  • Mozilla Firefox ESR is a version of the web browser intended to be deployed in large organizations.

Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution. Depending on the privileges associated with the user an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.