Multiple vulnerabilities in Mozilla Thunderbird ESR

Description

Multiple vulnerabilities were found in Mozilla Thunderbird ESR. Malicious users can exploit these vulnerabilities to bypass security restrictions, perform cross-site scripting attack, execute arbitrary code, cause denial of service.

Below is a complete list of vulnerabilities:

1. Security vulnerability can be exploited to bypass security restrictions.
2. Cross-site scripting (XSS) vulnerability can be exploited to perform cross-site scripting attack.
3. Validation of untrusted input vulnerability can be exploited to bypass security restrictions.
4. Use after free vulnerability can be exploited to cause denial of service or execute arbitrary code.

Fiches de renseignement originales

• MFSA2025-55

Exploitation

Public exploits exist for this vulnerability.

Produits associés

• Mozilla-Thunderbird-ESR

Liste CVE

• CVE-2025-6424
  critical
• CVE-2025-6425
  warning
• CVE-2025-6429
  high
• CVE-2025-6430
  high

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