Remote Command Execution
Critical Fortinet Forticlient EMS flaw now exploited in attacks
Attackers are now actively exploiting a critical vulnerability in Fortinet’s FortiClient EMS platform, according to threat intelligence company Defused. Tracked as CVE-2026-21643, this SQL injection vulnerability allows unauthenticated threat actors to execute arbitrary code or commands on unpatched systems through low-complexity attacks targeting the FortiClientEMS GUI (web interface) via maliciously crafted HTTP requests. “Fortinet Forticlient EMS […]
Zyxel warns of critical RCE flaw affecting over a dozen routers
Taiwan networking provider Zyxel has released security updates to address a critical vulnerability affecting over a dozen router models that can allow unauthenticated attackers to gain remote command execution on unpatched devices. Tracked as CVE-2025-13942, this command injection security flaw was found in the UPnP function of Zyxel 4G LTE/5G NR CPE, DSL/Ethernet CPE, Fiber […]
Hackers exploit critical React Native Metro bug to breach dev systems
Hackers are targeting developers by exploiting the critical vulnerability CVE-2025-11953 in the Metro server for React Native to deliver malicious payloads for Windows and Linux. On Windows, an unauthenticated attacker can leverage the security issue to execute arbitrary OS commands via a POST request. On Linux and macOS, the vulnerability can lead to running arbitrary executables with […]
SolarWinds warns of critical Web Help Desk RCE, auth bypass flaws
SolarWinds has released security updates to patch critical authentication bypass and remote command execution vulnerabilities in its Web Help Desk IT help desk software. The authentication bypass security flaws (tracked as CVE-2025-40552 and CVE-2025-40554) patched today by SolarWinds were reported by watchTowr’s Piotr Bazydlo and can be exploited by remote unauthenticated threat actors in low-complexity attacks. Bazydlo also […]
Hackers now exploiting critical Fortinet FortiSIEM flaw in attacks
A critical Fortinet FortiSIEM vulnerability with publicly available proof-of-concept exploit code is now being abused in attacks. According to security researcher Zach Hanley at penetration testing company Horizon3.ai, who reported the vulnerability (CVE-2025-64155), it is a combination of two issues that allow arbitrary writes with admin permissions and privilege escalation to root access. “An improper […]
Cisco finally fixes AsyncOS zero-day exploited since November
Cisco has finally patched a maximum-severity Cisco AsyncOS zero-day exploited in attacks against Secure Email Gateway (SEG) and Secure Email and Web Manager (SEWM) appliances since November 2025. As Cisco explained in December, when it disclosed the vulnerability (CVE-2025-20393), it affects only Cisco SEG and Cisco SEWM appliances with non-standard configurations when the Spam Quarantine […]
Cisco warns of unpatched AsyncOS zero-day exploited in attacks
Cisco warned customers today of an unpatched, maximum-severity Cisco AsyncOS zero-day actively exploited in attacks targeting Secure Email Gateway (SEG) and Secure Email and Web Manager (SEWM) appliances. This yet-to-be-patched zero-day (CVE-2025-20393) affects only Cisco SEG and Cisco SEWM appliances with non-standard configurations, when the Spam Quarantine feature is enabled and exposed on the Internet. […]
Popular JavaScript library expr-eval vulnerable to RCE flaw
A critical vulnerability in the popular expr-eval JavaScript library, with over 800,000 weekly downloads on NPM, can be exploited to execute code remotely through maliciously crafted input. The security issue was discovered by security researcher Jangwoo Choe and is tracked as CVE-2025-12735. According to the U.S. Cybersecurity and Infrastructure Security Agency (CISA), the severity rating is critical, with a […]
Critical Cisco UCCX flaw lets attackers run commands as root
Cisco has released security updates to patch a critical vulnerability in the Unified Contact Center Express (UCCX) software, which could enable attackers to execute commands with root privileges. The Cisco UCCX platform, described by the company as a “contact center in a box,” is a software solution for managing customer interactions in call centers, supporting up […]
Maximum severity GoAnywhere MFT flaw exploited as zero day
Hackers are actively exploiting a maximum severity vulnerability (CVE-2025-10035) in Fortra’s GoAnywhere MFT that allows injecting commands remotely without authentication. The vendor disclosed the flaw on September 18, buit the company had learned about it a week earlier, and did not share any details on how it was discovered or if it was being exploited. CVE-2025-10035 […]