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Home / Feed / Article

Spike in Fortinet VPN brute-force attacks raises zero-day concerns

Threat Score:
65
BleepingComputer
17 hours ago
Part of cluster #1877
Spike in Fortinet VPN brute-force attacks raises zero-day concerns

Overview

Spike in Fortinet VPN brute-force attacks raises zero-day concerns Bill Toulas August 13, 2025 12:42 PM 0 A massive spike in brute-force attacks targeted Fortinet SSL VPNs earlier this month, followed by a switch to FortiManager, marked a deliberate shift in targeting that has historically preceded new vulnerability disclosures. The campaign, detected by threat monitoring platform GreyNoise, manifested in two waves, on August 3 and August 5, with the second wave pivoting to FortiManager targetin...

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Article Intelligence

Key entities and indicators for this article

IP ADDRESSES
104.129.137.162
118.97.151.34
180.254.147.16
180.254.155.227
185.77.225.174
ATTACK TYPES
Brute Force
Brute-Force Attack
Credential Stuffing
Data Exfiltration
Exploitation of VPN
VULNERABILITIES
Authentication Bypass
RCE
Remote Code Execution
Zero-Day
COMPANIES
Fortinet
Meta
SECURITY VENDORS
Fortinet
GreyNoise
MALWARE
INC
MITRE ATT&CK
T1040
T1046
T1059
T1071
T1071.001
COUNTRIES
Brazil
Hong Kong
Japan
Spain
United States
PLATFORMS
FortiManager
FortiOS
INDUSTRIES
Cybersecurity
IT Security
Information Technology
Telecommunications
IP ADDRESSES
31.206.51.194
23.120.100.230
96.67.212.83
104.129.137.162
118.97.151.34
ARTICLE INFORMATION
Article #11124
Published 17 hours ago
BleepingComputer

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