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VMware has addressed multiple critical remote code execution (RCE) vulnerabilities in VMware ESXi and vSphere Client virtual infrastructure management platform that may allow attackers to execute arbitrary commands and take control of affected systems. "A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server," the company  said  in its advisory. The vulnerability, tracked as CVE-2021-21972, has a CVSS score of 9.8 out of a maximum of 10, making it critical in severity. "In our opinion, the RCE vulnerability in the vCenter Server can pose no less a threat than the infamous vulnerability in Citrix (CVE-2019-19781)," said Positive Technologies' Mikhail Klyuchnikov, who discovered and reported the flaw to VMware. "The error allows an unauthorized user to send a specially crafted request, which will later give them the opportunity ...

VMware has released patches to address four security flaws impacting ESXi, Workstation, and Fusion, including two critical flaws that could lead to code execution. Tracked as  CVE-2024-22252 and CVE-2024-22253 , the vulnerabilities have been described as use-after-free bugs in the XHCI USB controller. They carry a CVSS score of 9.3 for Workstation and Fusion, and 8.4 for ESXi systems. "A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host," the company  said  in a new advisory. "On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed." Multiple security researchers associated with the Ant Group Light-Year Security Lab and QiAnXin have been credited with independently discovering and reporting CVE-2024-22252. Secur...

VMware on Tuesday patched several  high-severity   vulnerabilities  impacting ESXi, Workstation, Fusion, Cloud Foundation, and NSX Data Center for vSphere that could be exploited to execute arbitrary code and cause a denial-of-service (DoS) condition. As of writing, there's no evidence that any of the weaknesses are exploited in the wild. The list of six flaws is as follows – CVE-2021-22040  (CVSS score: 8.4) - Use-after-free vulnerability in XHCI USB controller CVE-2021-22041  (CVSS score: 8.4) - Double-fetch vulnerability in UHCI USB controller CVE-2021-22042  (CVSS score: 8.2) - ESXi settingsd unauthorized access vulnerability CVE-2021-22043  (CVSS score: 8.2) - ESXi settingsd TOCTOU vulnerability CVE-2021-22050  (CVSS score: 5.3) - ESXi slow HTTP POST denial-of-service vulnerability CVE-2022-22945  (CVSS score: 8.8) - CLI shell injection vulnerability in the NSX Edge appliance component Successful exploitation of the flaws cou...

Cybersecurity never stops—and neither do hackers. While you wrapped up last week, new attacks were already underway. From hidden software bugs to massive DDoS attacks and new ransomware tricks, this week’s roundup gives you the biggest security moves to know. Whether you’re protecting key systems or locking down cloud apps, these are the updates you need before making your next security decision. Take a quick look to start your week informed and one step ahead. ⚡ Threat of the Week Cisco 0-Day Flaws Under Attack — Cybersecurity agencies warned that threat actors have exploited two security flaws affecting Cisco firewalls as part of zero-day attacks to deliver previously undocumented malware families like RayInitiator and LINE VIPER. The RayInitiator and LINE VIPER malware represent a significant evolution on that used in the previous campaign, both in sophistication and its ability to evade detection. The activity involves the exploitation of CVE-2025-20362 (CVSS score: 6.5) a...

The U.S. government is warning about the resurgence of BlackCat (aka ALPHV) ransomware attacks targeting the healthcare sector as recently as this month. "Since mid-December 2023, of the nearly 70 leaked victims, the healthcare sector has been the most commonly victimized," the government  said  in an updated advisory. "This is likely in response to the ALPHV/BlackCat administrator's post encouraging its affiliates to target hospitals after operational action against the group and its infrastructure in early December 2023." The alert comes courtesy of the Federal Bureau of Investigation (FBI), the Cybersecurity and Infrastructure Security Agency (CISA), and the Department of Health and Human Services (HHS). The BlackCat ransomware operation suffered a major blow late last year after a coordinated law enforcement operation led to the  seizure of its dark leak sites . But the takedown turned out to be a failure after the group managed to regain control of the...

Multiple security flaws have been  disclosed  in VMware Workstation and Fusion products that could be exploited by threat actors to access sensitive information, trigger a denial-of-service (DoS) condition, and execute code under certain circumstances. The four vulnerabilities impact Workstation versions 17.x and Fusion versions 13.x, with fixes available in version 17.5.2 and 13.5.2, respectively, the Broadcom-owned virtualization services provider said. A brief description of each of the flaws is below - CVE-2024-22267  (CVSS score: 9.3) - A use-after-free vulnerability in the Bluetooth device that could be exploited by a malicious actor with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host CVE-2024-22268  (CVSS score: 7.1) - A heap buffer-overflow vulnerability in the Shader functionality that could be exploited by a malicious actor with non-administrative access to a virtua...

This week made one thing clear: small oversights can spiral fast. Tools meant to save time and reduce friction turned into easy entry points once basic safeguards were ignored. Attackers didn’t need novel tricks. They used what was already exposed and moved in without resistance. Scale amplified the damage. A single weak configuration rippled out to millions. A repeatable flaw worked again and again. Phishing crept into apps people rely on daily, while malware blended into routine system behavior. Different victims, same playbook: look normal, move quickly, spread before alarms go off. For defenders, the pressure keeps rising. Vulnerabilities are exploited almost as soon as they surface. Claims and counterclaims appear before the facts settle. Criminal groups adapt faster each cycle. The stories that follow show where things failed—and why those failures matter going forward. ⚡ Threat of the Week Maximum Severity Security Flaw Disclosed in n8n — A maximum-severity vulnerability ...

U.S. cybersecurity and intelligence agencies have published a joint advisory warning of attacks perpetrated by a cybercrime gang known as the  Daixin Team  primarily targeting the healthcare sector in the country. "The Daixin Team is a ransomware and data extortion group that has targeted the HPH Sector with ransomware and data extortion operations since at least June 2022," the agencies  said . The alert was published Friday by the Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), and the Department of Health and Human Services (HHS). Over the past four months, the group has been linked to multiple ransomware incidents in the Healthcare and Public Health (HPH) sector, encrypting servers related to electronic health records, diagnostics, imaging, and intranet services. It's also said to have exfiltrated personal identifiable information (PII) and patient health information (PHI) as part of a double extortion scheme to se...

Even in well-secured environments, attackers are getting in—not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected. These attacks don’t depend on zero-days. They work by staying unnoticed—slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious now blends in, thanks to modular techniques and automation that copy normal behavior. The real concern? Control isn’t just being challenged—it’s being quietly taken. This week’s updates highlight how default settings, blurred trust boundaries, and exposed infrastructure are turning everyday systems into entry points. ⚡ Threat of the Week Critical SharePoint Zero-Day Actively Exploited (Patch Released Today) — Microsoft has released fixes to address two security flaws in SharePoint Server that have come under active exploitation in the wild to breach dozens of organizations across the world. Details of exploitation emer...

What happens when cybercriminals no longer need deep skills to breach your defenses? Today’s attackers are armed with powerful tools that do the heavy lifting — from AI-powered phishing kits to large botnets ready to strike. And they’re not just after big corporations. Anyone can be a target when fake identities, hijacked infrastructure, and insider tricks are used to slip past security unnoticed. This week’s threats are a reminder: waiting to react is no longer an option. Every delay gives attackers more ground. ⚡ Threat of the Week Critical SAP NetWeaver Flaw Exploited as 0-Day — A critical security flaw in SAP NetWeaver (CVE-2025-31324, CVSS score: 10.0) has been exploited by unknown threat actors to upload JSP web shells with the goal of facilitating unauthorized file uploads and code execution. The attacks have also been observed using the Brute Ratel C4 post-exploitation framework, as well as a well-known technique called Heaven's Gate to bypass endpoint protections. ...