Multiple vulnerabilities in Mozilla Firefox ESR

Description

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to spoof user interface, execute arbitrary code, cause denial of service.

Below is a complete list of vulnerabilities:

1. Security UI vulnerability can be exploited to spoof user interface.
2. Memory safety vulnerability can be exploited to execute arbitrary code.
3. Use after free vulnerability can be exploited to cause denial of service or execute arbitrary code.

Original advisories

• MFSA2025-22

Related products

• Mozilla-Firefox-ESR

CVE list

• CVE-2025-3030
  critical
• CVE-2025-3028
  high
• CVE-2025-3029
  high

Read more

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