Multiple vulnerabilities in Mozilla Firefox

Description

Multiple vulnerabilities were found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. Out of bounds memory read or write vulnerability can be exploited to cause denial of service.
2. Out of bounds memory read or write vulnerability on a JavaScript Promise object can be exploited to cause denial of service.

Original advisories

• MFSA2025-36

Related products

• Mozilla-Firefox

CVE list

• CVE-2025-4918
  unknown
• CVE-2025-4919
  unknown

Read more

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