Multiple vulnerabilities in Mozilla Firefox ESR

Description

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions, cause denial of service, gain privileges.

Below is a complete list of vulnerabilities:

1. A remote code execution vulnerability can be exploited remotely to execute local code.
2. Security vulnerability can be exploited to bypass security restrictions.
3. Memory safety vulnerability can be exploited to execute arbitrary code.
4. Out of bounds memory read vulnerability can be exploited to cause denial of service.
5. An elevation of privilege vulnerability can be exploited remotely to gain privileges.

Original advisories

• MFSA2025-29

Related products

• Mozilla-Firefox-ESR

CVE list

• CVE-2025-2817
  critical
• CVE-2025-4083
  critical
• CVE-2025-4084
  high
• CVE-2025-4087
  high
• CVE-2025-4091
  high
• CVE-2025-4093
  high

Read more

Find out the statistics of the vulnerabilities spreading in your region on statistics.securelist.com