Multiple vulnerabilities in Mozilla Firefox ESR

Description

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

Below is a complete list of vulnerabilities:

1. Security vulnerability can be exploited to bypass security restrictions.
2. Security vulnerability in the DOM: Navigation component can be exploited to bypass security restrictions.
3. Denial of service vulnerability in the Audio/Video: cubeb component can be exploited remotely to cause denial of service.
4. A remote code execution vulnerability in the DOM: Navigation component can be exploited remotely to execute arbitrary code.
5. A remote code execution vulnerability in the Disability Access APIs component can be exploited remotely to execute arbitrary code.
6. Denial of service vulnerability in the DOM: Bindings (WebIDL) component can be exploited remotely to cause denial of service.
7. Information disclosure vulnerability in the Graphics: ImageLib component can be exploited to obtain sensitive information.
8. Denial of service vulnerability in the Graphics component can be exploited remotely to cause denial of service.
9. Denial of service vulnerability in the Audio/Video: GMP component can be exploited remotely to cause denial of service.
10. A remote code execution vulnerability in Firefox ESR 115 can be exploited remotely to execute arbitrary code.

Original advisories

• MFSA2026-69

Exploitation

Public exploits exist for this vulnerability.

CVE list

• CVE-2026-15719
  high
• CVE-2026-16349
  critical
• CVE-2026-16350
  critical
• CVE-2026-16351
  critical
• CVE-2026-16352
  critical
• CVE-2026-16353
  critical
• CVE-2026-16354
  critical
• CVE-2026-16355
  critical
• CVE-2026-16356
  critical
• CVE-2026-16357
  critical
• CVE-2026-16358
  critical
• CVE-2026-16359
  critical
• CVE-2026-16360
  critical
• CVE-2026-16361
  critical

Read more

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