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#fortinet

5 articles

This archive covers seven articles from April 14 to May 13, 2026, focusing on Fortinet. The threat actor The Gentlemen was observed in these incidents. Key vulnerabilities include CVE-2025-59718, CVE-2026-21643, CVE-2024-55591, CVE-2025-32433, and CVE-2025-33073. The affected sectors are financial services, government, software consultancy, technology, and various others, with reports coming from Europe, North America, Turkey, and the UK. The severity mix across these articles is five critical and two high.

CISA headquarters building with the Known Exploited Vulnerabilities catalog interface displayed on a screenCRITICAL
Vulnerabilities

CISA Adds Cisco CVE-2026-20079 With Perfect 10.0 Score to KEV

CISA's KEV catalog now lists CVE-2026-20079, a CVSS 10.0 authentication bypass in Cisco software, alongside exploited Citrix and Fortinet flaws. Federal patch deadline: Sept. 12.

CVE-2026-20079
3 min read
The Gentlemen RaaS Internal Leak Exposes Admin, Affiliates, TacticsCRITICAL
Threat Intel

The Gentlemen RaaS Internal Leak Exposes Admin, Affiliates, Tactics

A leaked backend database from The Gentlemen RaaS operation reveals 9 accounts, admin TOX ID, initial access via Fortinet/Cisco edge flaws, and a 190,000 USD ransom payout.

CVE-2024-55591CVE-2025-32433CVE-2025-33073
4 min readThe Gentlemen
FortiGate SSO Bypass CVE-2025-59718 Exploited in Active AttacksCRITICAL
Vulnerabilities

FortiGate SSO Bypass CVE-2025-59718 Exploited in Active Attacks

Rapid7 IR confirms active exploitation of CVE-2025-59718 — a 9.8-CVSS FortiGate SSO bypass — enabling attackers to gain persistent admin access on unpatched appliances.

CVE-2025-59718
2 min read
PoC Exploit Released for Critical FortiSandbox Command Injection FlawCRITICAL
Vulnerabilities

PoC Exploit Released for Critical FortiSandbox Command Injection Flaw

A proof-of-concept exploit for CVE-2026-39808, a critical command injection vulnerability in Fortinet FortiSandbox, has been released. The flaw allows unauthenticated attackers to execute arbitrary OS commands as root.

CVE-2026-39808
4 min read
CISA Flags Six Actively Exploited Flaws in Fortinet, Microsoft, AdobeHIGH
Vulnerabilities

CISA Flags Six Actively Exploited Flaws in Fortinet, Microsoft, Adobe

CISA added six vulnerabilities in Fortinet, Microsoft, and Adobe software to its Known Exploited Vulnerabilities catalog, warning of active in-the-wild attacks requiring urgent patching.

CVE-2026-21643
3 min read

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