Threat Feed
Daily intelligence on vulnerabilities, threat actors and geopolitical context — distilled from primary sources.
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criticalperson_alertThreat ActorFortiBleed: Russian IAB harvests 110M credentials from FortiGate devices
FortiBleed is attributed to a Russian-speaking initial access broker (IAB) conducting large-scale credential harvesting operations since February 2026. The actor demonstrates advanced operational capabilities through systematic targeting of over 430,…
highperson_alertThreat ActorFortiBleed Campaign Targets FortiGate Devices with Credential Sniffers
FortiBleed is a campaign-level designation for coordinated activity targeting Fortinet FortiGate network security appliances. The campaign's primary objective is credential harvesting through the deployment of custom sniffers on compromised firewalls…
highperson_alertThreat ActorRussian-speaking actors compromise 86,644 FortiGate devices via FortiBleed
Russian-speaking threat actors are conducting the FortiBleed campaign, targeting internet-accessible FortiGate appliances at scale. The actors' specific motivation remains unclear from available data, though the mass compromise of 86,644 devices sugg…
highpublicGeopoliticalCISA warns of 74,000 Fortinet credentials exposed in FortiBleed leak
The exposure of approximately 74,000 Fortinet firewall and VPN credentials represents a significant supply-side vulnerability affecting critical infrastructure globally.
highbug_reportVulnerabilityNCSC warns of active global campaign targeting Fortinet firewalls and VPNs
Fortinet firewalls and VPN gateways globally. Specific product lines and versions not disclosed in alert. Organizations using FortiGate, FortiOS, or FortiClient VPN services should assume potential exposure.
criticalbug_reportVulnerabilityFortinet FortiSandbox under active exploit for 3 CVEs including critical 9.1
Fortinet FortiSandbox - specific affected versions not disclosed. Three CVEs: CVE-2026-39813 (CVSS 9.1 critical), CVE-2026-39808, CVE-2026-25089. At least one vulnerability recently patched; patch status of others unclear.
criticalbug_reportVulnerabilityActive exploitation of critical FortiSandbox vulnerabilities
Fortinet FortiSandbox cyber threat detection platform. Specific versions not disclosed. No CVE assigned yet.
criticalbug_reportVulnerabilityCritical command injection flaw in Fortinet FortiSandbox requires patching
Fortinet FortiSandbox (specific versions not disclosed in available data). Command injection vulnerability allows unauthorized command execution.
criticalbug_reportVulnerabilityFortinet FortiSandbox command injection flaw enables remote code execution
Fortinet FortiSandbox products affected by CVE-2026-25089 (CVSS 9.1). Specific vulnerable versions not disclosed in provided data. Ivanti and SAP also released patches for separate critical vulnerabilities.
highbug_reportVulnerabilityFortinet FortiClient EMS auth bypass exploited to deploy EKZ malware
Fortinet FortiClient Enterprise Management Server (EMS). Specific vulnerable versions not provided in available data. Authentication bypass vulnerability CVE-2026-35616 allows unauthorized access.
highperson_alertThreat ActorArctic Wolf exploits FortiClient EMS flaw for credential theft
Arctic Wolf is a threat actor exploiting a critical, patched vulnerability in FortiClient Endpoint Management Server (EMS) to deploy credential-stealing malware.
criticalbug_reportVulnerabilityMultiple critical vulnerabilities in Fortinet products require patching
Fortinet products: FortiSandbox, FortiOS, FortiAP, FortiAnalyzer, and FortiManager. Specific affected versions not provided in advisory. Multiple vulnerabilities ranging from critical to medium severity.
highbug_reportVulnerabilityFortinet FortiCloud SSO bypass exploited to extract LDAP passwords
Fortinet FortiGate appliances with FortiCloud SSO enabled. CVE-2025-59718 and CVE-2025-59719 allow authentication bypass. All FortiGate instances share a default static encryption key that enables decryption of LDAP credentials and private keys from…
criticalbug_reportVulnerabilityFortinet FortiCloud SSO auth bypass under active exploitation
Fortinet FortiCloud SSO SAML authentication processing (CVE-2025-59718, CVE-2025-59719). Affects management interfaces of FortiGate and potentially other Fortinet products using FortiCloud SSO.