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Critical macOS, SharePoint, vCenter, and Microsoft IKE Flaws Under Active Exploitation

The Hacker News
Actively Exploited
macOSCVEMicrosoftAppleVMwareVulnerabilityCritical

Overview

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has identified four critical vulnerabilities that are currently being exploited in the wild, adding them to its Known Exploited Vulnerabilities (KEV) catalog. Among these is CVE-2026-65400, a serious authentication flaw in Apple macOS that could allow unauthorized access. Other vulnerabilities affect Microsoft SharePoint, VMware vCenter, and Microsoft IKE, all of which pose significant risks to organizations using these platforms. With a CVSS score of 9.8 for CVE-2026-65400, it’s crucial for users and companies to act quickly to mitigate these risks. The exploitation of these vulnerabilities could lead to severe data breaches or unauthorized access, making it essential for affected parties to stay informed and apply necessary updates and patches.

Key Takeaways

  • Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
  • Affected Systems: Apple macOS (CVE-2026-65400), Microsoft SharePoint, VMware vCenter, Microsoft IKE
  • Action Required: Users should apply patches and updates provided by Apple, Microsoft, and VMware for the identified vulnerabilities.
  • Timeline: Newly disclosed

Original Article Summary

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four critical vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, stating they are being exploited in the wild. The shortcomings added to the KEV catalog are listed below - CVE-2026-65400 (CVSS score: 9.8) - An improper authentication vulnerability impacting Apple macOS that could allow an

Impact

Apple macOS (CVE-2026-65400), Microsoft SharePoint, VMware vCenter, Microsoft IKE

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Users should apply patches and updates provided by Apple, Microsoft, and VMware for the identified vulnerabilities. Specific patch numbers were not mentioned, so it is recommended to check the respective vendor websites for the latest updates and security advisories.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to macOS, CVE, Microsoft, and 4 more.

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