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Google released emergency updates to patch CVE-2026-2441, a high-severity use-after-free vulnerability in Chrome that is being actively exploited in the wild. This marks Chrome's first zero-day of 2026.
Russia's APT28 began exploiting Microsoft Office CVE-2026-21509 just 72 hours after disclosure, targeting Ukraine, Slovakia, and Romania with email-stealing malware and Covenant implants.
Read moreA high-severity Microsoft Office zero-day (CVE-2026-21509) is being actively exploited to bypass security controls designed to block risky COM and OLE content. Successful exploitation requires a user to open a malicious Office document, enabling follow-on payload execution and intrusion activity. Apply Microsoft's out-of-band update immediately or deploy the recommended registry-based mitigation if patching is delayed.
Read moreReact2Shell refers to a newly disclosed set of exploitation paths affecting React Server Components and modern server-side rendering workflows. In vulnerable implementations, attackers may escalate from user-driven application behavior into sensitive server-side execution, data access, or compromise of backend services. Organizations using RSC or SSR patterns should audit server-executed components, reduce dynamic execution paths, and apply strict validation and least-privilege controls.
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