Cybercriminals allegedly hacked tens of thousands of Fortinet firewalls used by major companies all over the world

Cybercriminals have compromised tens of thousands of Fortinet firewalls and VPNs used by major companies all over the world, according to two cybersecurity firms. The widespread hacking campaign, which is ongoing and has been dubbed FortiBleed, appears to not involve Read More …

Patch these critical Fortinet sandbox bugs that let attackers bypass login, run commands over HTTP

Watch out for more Fortinet vulns! Two critical bugs in Fortinet’s sandbox could allow unauthenticated attackers to bypass authentication or execute unauthorized code on vulnerable systems. Luckily, the security vendor has issued fixes – so patch now – and so Read More …

Attackers exploited critical FortiClient EMS bug as a 0-day

Fortinet released an emergency patch over the weekend for a critical FortiClient Enterprise Management Server (EMS) bug believed to be under attack since at least March 31. The flaw, tracked as CVE-2026-35616, is an improper access control vulnerability that allows Read More …

Fortinet patches FortiGate Firewall vulnerabilities that allowed hackers to steal enterprise credentials

At the start of the year, cybercriminals were exploiting three vulnerabilities in FortiGate Next-Generation Firewalls (NGFW) to establish persistence and move laterally throughout the network. All recorded attacks were stopped before they could do any meaningful harm, and FortiGate has Read More …

CISA: Fortinet Releases Guidance to Address Ongoing Exploitation of Authentication Bypass Vulnerability CVE-2026-24858

Newly disclosed vulnerability Common Vulnerabilities and Exposures (CVE)-2026-24858 [Common Weakness Enumeration (CWE)-288: Authentication Bypass Using an Alternate Path or Channel] allows malicious actors with a FortiCloud account and a registered device to log in to separate devices registered to other Read More …

Fortinet admits FortiGate SSO bug still exploitable despite December patch

Fortinet has confirmed that attackers are actively bypassing a December patch for a critical FortiCloud single sign-on (SSO) authentication flaw after customers reported suspicious logins on devices supposedly fully up to date. In a new advisory, Fortinet said it had Read More …

Critical vulnerabilities in Fortinet CVE-2025-59718, CVE-2025-59719 exploited in the wild

A recently disclosed pair of vulnerabilities affecting Fortinet devices—CVE-2025-59718 and CVE-2025-59719—are drawing urgent attention after confirmation of their active exploitation in the wild. The vulnerabilities carry a critical CVSSv3 score and allow an unauthenticated remote attacker to bypass authentication using Read More …

Fortinet Releases Security Advisory for Relative Path Traversal Vulnerability Affecting FortiWeb Products

CISA is aware of exploitation of a newly disclosed vulnerability, CVE-2025-64446, in Fortinet FortiWeb, a web application firewall. This vulnerability affects the following FortiWeb versions:1 8.0.0 through 8.0.1 7.6.0 through 7.6.4 7.4.0 through 7.4.9 7.2.0 through 7.2.11 7.0.0 through 7.0.11 Read More …

Fortinet Releases Security Advisory for Authentication Bypass Vulnerability

An authentication bypass using an alternate path or channel [CWE-288] vulnerability in FortiOS, FortiProxy & FortiPAM may allow an unauthenticated attacker to seize control of a managed device via crafted FGFM requests, if the device is managed by a FortiManager, Read More …

Fortinet Flaws Exploited by Qilin Ransomware

Fortinet was recently found to have certain vulnerabilities that hackers like the Qilin group exploited. Here’s how they manipulated these weaknesses: Misconfigurations in security appliances provided a direct entry point for Qilin.Outdated Software: Failure to update Fortinet software allowed the Read More …