CVE-2021-47784

Cyberfox Web Browser 52.9.1 contains a denial of service vulnerability that allows attackers to crash the application by overflowing the search bar with excessive data. Attackers can generate a 9,000,000 byte payload and paste it into the search bar to trigger an application crash.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://web.archive.org/web/20180906035057/https://cyberfox.8pecxstudios.com/
https://www.exploit-db.com/exploits/50336

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Cyberfox Navegador Web 52.9.1 contiene una vulnerabilidad de denegación de servicio que permite a los atacantes colapsar la aplicación desbordando la barra de búsqueda con datos excesivos. Los atacantes pueden generar una carga útil de 9.000.000 bytes y pegarla en la barra de búsqueda para provocar el colapso de la aplicación.

15 Jan 2026, 16:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-15 16:16

Updated : 2026-04-15 00:35

NVD link : CVE-2021-47784

Mitre link : CVE-2021-47784

CVE.ORG link : CVE-2021-47784

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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