Microsoft Addresses React2Shell RCE Vulnerability in React Server Components
First seen 16 Dec 2025, 20:58 UTC
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Microsoft has detailed mitigations for the React2Shell vulnerability (CVE-2025-55182), which allows remote code execution in React Server Components and .js environments. This critical flaw, with a CVSS score of 10.0, enables attackers to compromise servers via a single malicious HTTP request. Exploitation attempts were first detected in December 2025.
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