CVE-2021-47784
HIGHCyberfox Web Browser 52.9.1 - DoS
Title source: llmDescription
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.
Exploits (1)
exploitdb
WORKING POC
by Aryan Chehreghani · pythonlocalwindows
https://www.exploit-db.com/exploits/50336
Scores
CVSS v3
7.5
EPSS
0.0004
EPSS Percentile
13.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-770
Status
published
Published
Jan 15, 2026
Tracked Since
Feb 18, 2026