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Latest coverage for Critical Vulnerability

Critical vulnerabilities can let attackers bypass security controls, compromise systems, or steal data, requiring urgent risk assessment and remediation.

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A critical vulnerability is a software or hardware flaw that allows attackers to execute highly damaging actions, such as remote code execution or privilege escalation, with little or no user interaction. These vulnerabilities often affect core system components or widely used services, making them attractive targets for exploitation. The severity rating "critical" indicates that successful exploitation can lead to full system compromise or significant operational disruption.

Security practitioners must prioritize identifying and patching critical vulnerabilities promptly to reduce exposure to automated attacks and wormable exploits. Effective mitigation includes applying vendor patches, deploying intrusion detection systems tuned for exploit patterns, and restricting network access to vulnerable services. Understanding the exploitability and impact scope of a critical vulnerability helps allocate resources efficiently and maintain system integrity under active threat conditions.

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Ubiquiti patched seven UniFi OS flaws, including critical CVE-2026-50746, which allows command injection in UniFi Connect Application. Ubiquiti released security updates for seven critical UniFi OS vulnerabilities, including a maximum-severity flaw, tracked as CVE-2026-50746 (CVSS score of 10.0), enabling command injection attacks. The issue affects UniFi Connect Application versions 3.4.16 and earlier, a platform used […]

Security Affairs 9 Jul 2026, 8:20 a.m. Incident · 5 stories CVE-2026-50746 Critical Vulnerability CVE Flaw Patch Privilege Escalation Ubiquiti Vulnerability

Attackers are exploiting a critical flaw in Oracle E-Business Suite, CVE-2026-46817, that allows remote, unauthenticated attackers to take over Oracle Payments. A critical vulnerability in Oracle E-Business Suite, tracked as CVE-2026-46817, is being actively exploited in the wild, according to cybersecurity firm Defused Cyber. “CVE-2026-46817 (CVSS 9.8 unauth HTTP takeover in Oracle E-Business) is being […]

Security Affairs 30 Jun 2026, 9:01 p.m. Incident · 4 stories Actively exploited CVE-2026-46817 Critical Vulnerability CVE Exploit Flaw Oracle Unauthenticated Vulnerability

F5 released emergency updates for critical NGINX flaws (CVE-2026-42530, CVE-2026-42055) that could enable unauthenticated code execution. F5 has issued out-of-band patches for multiple NGINX vulnerabilities, including two critical flaws, respectively tracked as CVE-2026-42530 and CVE-2026-42055 (CVSS 9.2). The bugs affect HTTP modules and can be exploited remotely without authentication to trigger memory corruption, potentially causing […]

Security Affairs 19 Jun 2026, 2:07 a.m. Incident · 3 stories CVE-2026-42530 CVE-2026-42055 Authentication Critical Vulnerability CVE F5 Flaw Patch Unauthenticated Vulnerability

Attackers are exploiting the critical CVE-2026-10520 flaw in Ivanti Sentry, compromising many internet-exposed gateways shortly after patches were released. Threat actors have started exploiting a maximum-severity OS command injection flaw in Ivanti Sentry, tracked as CVE-2026-10520, that allows remote code execution with root privileges. “An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a remote […]

Security Affairs 12 Jun 2026, 5:57 a.m. Incident · 2 stories Actively exploited CVE-2026-10520 Compromise Critical Vulnerability CVE Exposure Flaw Patch Remote Code Execution Root Access Threat Actor Vulnerability

Attackers are exploiting the critical CVE-2026-10520 flaw in Ivanti Sentry, compromising many internet-exposed gateways shortly after patches were released. Threat actors have started exploiting a maximum-severity OS command injection flaw in Ivanti Sentry, tracked as CVE-2026-10520, that allows remote code execution with root privileges. “An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a remote […]

Security Affairs 12 Jun 2026, 5:57 a.m. Incident · 2 stories Actively exploited CVE-2026-10520 Compromise Critical Vulnerability CVE Exposure Flaw Patch Remote Code Execution Root Access Threat Actor Vulnerability

A critical vulnerability, tracked as CVE-2026-45659, in Microsoft SharePoint can allow attackers to achieve remote code execution with little effort. Microsoft released security updates to patch a high-severity SharePoint vulnerability, tracked as CVE-2026-45659 (CVSS score of 8.8), that could allow remote code execution. The flaw does not require complex conditions for exploitation, making it a […]

Security Affairs 27 May 2026, 7:10 p.m. Incident · 2 stories Actively exploited CVE-2026-45659 Critical Vulnerability CVE Flaw Microsoft Patch Remote Code Execution Vulnerability