Kaspersky ID:
KLA91059
Erkennungsdatum:
05/19/2026
Aktualisiert:
05/20/2026

Beschreibung

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

Below is a complete list of vulnerabilities:

  1. Denial of service vulnerability in the Audio/Video: Web Codecs component can be exploited remotely to cause denial of service.
  2. Denial of service vulnerability in the JavaScript Engine: JIT component can be exploited remotely to cause denial of service.
  3. A remote code execution vulnerability in the DOM: Bindings (WebIDL) component can be exploited remotely to execute arbitrary code.
  4. Denial of service vulnerability in the JavaScript Engine component can be exploited remotely to cause denial of service.
  5. Security vulnerability in the Profile Backup component can be exploited to bypass security restrictions.
  6. A remote code execution vulnerability in the Widget: Win32 component can be exploited remotely to execute arbitrary code.
  7. Security vulnerability in the Networking: HTTP component can be exploited to bypass security restrictions.
  8. A remote code execution vulnerability in the Disability Access APIs component can be exploited remotely to execute arbitrary code.
  9. A remote code execution vulnerability in the Audio/Video component can be exploited remotely to execute arbitrary code.
  10. Security vulnerability in the DOM: Workers component can be exploited to bypass security restrictions.
  11. A remote code execution vulnerability in the Networking: JAR component can be exploited remotely to execute arbitrary code.
  12. Security vulnerability in the Enterprise Policies component can be exploited to bypass security restrictions.
  13. Security vulnerability in the Security: Process Sandboxing component can be exploited to bypass security restrictions.
  14. Denial of service vulnerability in the Widget: Win32 component can be exploited remotely to cause denial of service.
  15. Security UI vulnerability in the Form Autofill component can be exploited to spoof user interface.
  16. Security vulnerability in the DOM: Security component can be exploited to bypass security restrictions.
  17. Security vulnerability in the Security component can be exploited to bypass security restrictions.
  18. A remote code execution vulnerability in Thunderbird 140 can be exploited remotely to execute arbitrary code.

Ursprüngliche Informationshinweise

Betroffene Produkte

CVE Liste

  • CVE-2026-8388
    high
  • CVE-2026-8391
    high
  • CVE-2026-8401
    critical
  • CVE-2026-8946
    critical
  • CVE-2026-8947
    high
  • CVE-2026-8949
    critical
  • CVE-2026-8950
    critical
  • CVE-2026-8953
    critical
  • CVE-2026-8954
    critical
  • CVE-2026-8955
    high
  • CVE-2026-8956
    critical
  • CVE-2026-8957
    high
  • CVE-2026-8958
    critical
  • CVE-2026-8959
    critical
  • CVE-2026-8961
    unknown
  • CVE-2026-8962
    unknown
  • CVE-2026-8968
    critical
  • CVE-2026-8970
    high
  • CVE-2026-8974
    critical
  • CVE-2026-8975
    critical

Mehr erfahren

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