Pierluigi Paganini
January 23, 2026
Fortinet confirmed attacks are bypassing FortiCloud SSO authentication, affecting even fully patched devices, similar to recent SSO flaws. Fortinet confirmed attacks bypass FortiCloud SSO on fully patched devices. Threat actors automate firewall changes, add users, enable VPNs, and steal configs, in campaigns resembling December 2025 exploits of critical FortiCloud SSO flaws. Arctic Wolf researchers reported […]
Pierluigi Paganini
January 22, 2026
Arctic Wolf warned of a new wave of automated attacks making unauthorized firewall configuration changes on Fortinet FortiGate devices. Arctic Wolf researchers reported a new automated attack cluster observed since January 15, 2026, targeting FortiGate devices. Attackers created generic accounts for persistence, enabled VPN access, and exfiltrated firewall configurations. The activity resembles a December 2025 […]
Pierluigi Paganini
January 14, 2026
Fortinet fixed six security flaws, including two critical bugs in FortiFone and FortiSIEM that attackers could exploit without authentication. Fortinet released patches for six vulnerabilities, including two critical flaws in FortiFone and FortiSIEM that could be exploited without authentication to leak configuration data or enable code execution. The first vulnerabilty, tracked as CVE-2025-64155 (CVSS score […]
Pierluigi Paganini
December 25, 2025
Fortinet reported active exploitation of a five-year-old FortiOS SSL VPN flaw, abused in the wild under specific configurations. Fortinet researchers observed “recent abuse” of a five-year-old security vulnerability, tracked as CVE-2020-12812 (CVSS score: 5.2), in FortiOS SSL VPN. The vulnerability is exploited in attacks in the wild under certain configurations. CVE-2020-12812 is an improper authentication flaw […]
Pierluigi Paganini
December 17, 2025
U.S. CISA adds a vulnerability impacting multiple products to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability, tracked as CVE-2025-59718 (CVSS Score of 9.1), to its Known Exploited Vulnerabilities (KEV) catalog. Threat actors started exploiting two critical flaws, tracked as CVE-2025-59718 and CVE-2025-59719 (CVSS score of 9.1), […]
Pierluigi Paganini
December 16, 2025
Threat actors are exploiting two critical Fortinet flaws, tracked as CVE-2025-59718 and CVE-2025-59719, days after patch release, impacting multiple Fortinet products. Threat actors started exploiting two critical flaws, tracked as CVE-2025-59718 and CVE-2025-59719 (CVSS score of 9.1), in Fortinet products days after patch release, Arctic Wolf warns. Last week, Fortinet addressed 18 vulnerabilities, including the two flaws […]
Pierluigi Paganini
December 10, 2025
Fortinet patched 18 flaws, including two authentication-bypass bugs affecting FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager with FortiCloud SSO enabled. Fortinet addressed 18 vulnerabilities, including two authentication-bypass flaws, tracked as CVE-2025-59718 and CVE-2025-59719 (CVSS score of 9.1), affecting FortiOS, FortiWeb, FortiProxy, and FortiSwitchManager when FortiCloud SSO is enabled. Both vulnerabilities are improper verification of cryptographic signature issues. […]
Pierluigi Paganini
November 19, 2025
Fortinet patched a new FortiWeb zero-day, tracked as CVE-2025-58034, which attackers are actively exploiting. Fortinet patched a new FortiWeb zero-day, tracked as CVE-2025-58034 (CVSS score 6.7), which is being actively exploited in attacks in the wild. Trend Micro researcher Jason McFadyen reported the vulnerability. The flaw is an improper neutralization of special elements used in […]
Pierluigi Paganini
August 13, 2025
Fortinet warns of a critical FortiSIEM vulnerability, tracked as CVE-2025-25256, that is actively exploited in attacks in the wild. Fortinet warns customers of a critical vulnerability, tracked as CVE-2025-25256 (CVSS score of 9.8), affecting FortiSIEM for which an exploit exists in the wild. Fortinet gave no details about the exploit, noting it leaves no clear Indicators […]
Pierluigi Paganini
June 06, 2025
Qilin ransomware now exploits Fortinet vulnerabilities to achieve remote code execution on impacted devices. Threat intelligence firm PRODAFT warned that Qilin ransomware (aka Phantom Mantis) group targeted multiple organizations between May and June 2025 by exploiting multiple FortiGate vulnerabilities, including CVE-2024-21762, and CVE-2024-55591. “Phantom Mantis recently launched a coordinated intrusion campaign targeting multiple organizations between […]
