Max severity Flowise RCE vulnerability now exploited in attacks

Hackers are exploiting a maximum-severity vulnerability, tracked as CVE-2025-59528, in the open-source platform Flowise for building custom LLM apps and agentic systems to execute arbitrary code. The flaw allows injecting JavaScript code without any security checks and was publicly disclosed last September, with the warning that successful exploitation leads to command execution and file system […]

German authorities identify REvil and GangCrab ransomware bosses

The Federal Police in Germany (BKA) has identified two Russian nationals as the leaders of GandCrab and REvil ransomware operations between 2019 and 2021. According to BKA’s disclosure, 31-year-old Daniil Maksimovich Shchukin and 43-year-old Anatoly Sergeevitsch Kravchuk acted as the heads of the two ransomware groups “from at least the beginning of 2019 until at least July 2021.” Shchukin hid behind the […]

Disgruntled researcher leaks “BlueHammer” Windows zero-day exploit

Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions. Dubbed BlueHammer, the vulnerability was published by a security researcher discontent with how Microsoft’s Security Response Center (MSRC) handled the disclosure process. Since, the security issue has no official patch and there […]

New FortiClient EMS flaw exploited in attacks, emergency patch released

Fortinet has released an emergency weekend security update for a new critical FortiClient Enterprise Management Server (EMS) vulnerability that is actively exploited in attacks. Tracked as CVE-2026-35616, the flaw is an improper access control vulnerability that allows unauthenticated attackers to execute code or commands via specially crafted requests. The issue was patched Saturday, with Fortinet […]

Hackers exploit React2Shell in automated credential theft campaign

Hackers are running a large-scale campaign to steal credentials in an automated way after exploiting React2Shell (CVE-2025-55182) in vulnerable Next.js apps. At least 766 hosts across various cloud providers and geographies have been compromised to collect database and AWS credentials, SSH private keys, API keys, cloud tokens, and environment secrets. The operation uses a framework named NEXUS […]