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The U.S. Cybersecurity and Infrastructure Security Agency (CISA), on Thursday, added a critical security flaw impacting Fortinet FortiMail to its Known Exploited Vulnerabilities ( KEV ) catalog, following reports of active exploitation. The vulnerability, tracked as CVE-2026-104286 (CVSS score: 9.8), allows unauthenticated attackers to write arbitrary files on the underlying system. "An improper limitation of a pathname to a restricted directory ('path traversal') [CWE-22] and improper neutralization of NULL byte or NULL character [CWE-158] vulnerability may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests," Fortinet said in an advisory. The vulnerability impacts the following versions - FortiMail 8.0.0 through 8.0.1 (Upgrade to upcoming 8.0.2 or above) FortiMail 7.6.0 through 7.6.6 (Upgrade to upcoming 7.6.7 or above) FortiMail 7.4.0 through 7.4.8 (Upgrade to upcoming 7.4.9 or a...

Fortinet has patched a critical security flaw that it said has been exploited as a zero-day in attacks targeting FortiVoice enterprise phone systems. The vulnerability, tracked as CVE-2025-32756, carries a CVSS score of 9.6 out of 10.0. "A stack-based overflow vulnerability [CWE-121] in FortiVoice, FortiMail, FortiNDR, FortiRecorder, and FortiCamera may allow a remote unauthenticated attacker to execute arbitrary code or commands via crafted HTTP requests," the company said in an advisory. The company said it observed the flaw being exploited in the wild on FortiVoice systems, but did not disclose the scale of the attacks and the identity of the threat actors behind them. It further noted that the threat actor performed device network scans, erased system crash logs, and enabled fcgi debugging to log credentials from the system or SSH login attempts. The issue affects the following products and versions - FortiCamera 1.1, 2.0 (Migrate to a fixed release) FortiCamer...

Cybersecurity researchers have disclosed details of sustained cyber espionage activity against several Pakistani law enforcement organizations undertaken by suspected China- and India-aligned threat actors between February 2024 and April 2026. "At Balochistan Police, the compromised assets included servers hosting web applications that manage police and citizen data, such as criminal and biometric records," Aleksandar Milenkoski, principal threat researcher at SentinelOne SentinelLABS, said in a report published this week. The activity targeted network appliances and servers hosting web applications that manage biometric records, hotel and tenant registrations linked to national identity records, criminal case files, and personnel records. The China-nexus threat actor is also said to have compromised one of these web applications to deploy a custom implant masquerading as a portal update. The application in question, named Complaint Management System (CMS), serves pol...

A Brazilian banking trojan called Ousaban is going after Windows users who bank in Spain and Portugal.  Fortinet's FortiGuard Labs  identified the campaign in May 2026. It opens with a phishing PDF disguised as a corrupted file, checks that the visitor is really in Spain or Portugal, and hides its real payload inside an image. The goal is the usual one: steal banking logins and take over accounts. Ousaban sits quietly on a Windows PC and waits for the user to open a banking site. When a target bank loads, it can capture screenshots and keystrokes, tamper with the clipboard, show fake messages, and give the attacker remote control. Together, those are the tools for hijacking a live banking session and taking over an account. Ousaban watches for more than two dozen banks across the two countries, among them Banco Santander, BBVA, CaixaBank, Bankinter, and Caixa Geral de Depósitos. How the attack works It starts with a phishing PDF disguised as a corrupted file. Th...

Cybersecurity leaders aren’t just dealing with attacks—they’re also protecting trust, keeping systems running, and maintaining their organization’s reputation. This week’s developments highlight a bigger issue: as we rely more on digital tools, hidden weaknesses can quietly grow.  Just fixing problems isn’t enough anymore—resilience needs to be built into everything from the ground up. That means better systems, stronger teams, and clearer visibility across the entire organization. What’s showing up now isn’t just risk—it’s a clear signal that acting fast and making smart decisions matters more than being perfect. Here’s what surfaced—and what security teams can’t afford to overlook. ⚡ Threat of the Week Microsoft Fixes 5 Actively Exploited 0-Days — Microsoft addressed a total of 78 security flaws in its Patch Tuesday update for May 2025 last week, out of which five of them have come under active exploitation in the wild. The vulnerabilities include CVE-2025-30397, CVE-2025-...