Overview Recently, NSFOCUS CERT detected that a Fastjson 1.2.x remote code execution vulnerability without gadget was disclosed online; Due to the defects in the internal type parsing logic of Fastjson deserialization, unauthenticated attackers can construct specially crafted malicious JSON data to bypass the traditional autoType black and white list protection...
Category: Emergency Response
WordPress Remote Code Execution Vulnerability (CVE-2026-63030/CVE-2026-60137) Notice
Overview Recently, NSFOCUS CERT detected that WordPress issued a security bulletin to fix the WordPress remote code execution vulnerability (CVE-2026-63030/CVE-2026-60137), known as wp2shell; Unauthenticated attackers can bypass authentication through REST API batch requests, use SQL injection to obtain administrator password hashes, and use plug-in installation functions to implant WebShell to...
Microsoft’s July Security Update of High-Risk Vulnerability Notice for Multiple Products
Overview On July 15, NSFOCUS CERT monitored that Microsoft released its July security update patch, fixing 622 security issues. These affect widely used products such as Windows, Microsoft Office, Microsoft SQL Server, Visual Studio Code, Microsoft Edge, Azure, etc., which include high-risk vulnerability types such as remote code execution vulnerabilities,...
Microsoft’s Security Update in June of High-Risk Vulnerability Notice for Multiple Products
Overview On June 9, NSFOCUS CERT detected that Microsoft released a security update patch for June, fixing 206 security issues involving widely used products such as Windows, Microsoft Office, Microsoft Exchange Server, Visual Studio Code, Azure, etc., including remote code execution vulnerabilities, High-risk vulnerability types such as information leakage vulnerabilities...
Nginx Remote Code Execution Vulnerability (CVE-2026-42945) Notice
Overview Recently, NSFOCUS CERT detected that Nginx and F5 issued security bulletins to fix the Nginx remote code execution vulnerability (CVE-2026-42945); because the ngx_http_rewrite_module module contains question marks in processing (? ) has a defect in the calculation logic when replacing strings with rewrite. Under certain configuration conditions, an unauthenticated...
Linux Kernel Fragnesia Privilege Escalation Vulnerability (CVE-2026-46300) Notice
Overview Recently, NSFOCUS CERT detected that the Linux kernel Fragnesia privilege escalation vulnerability (CVE-2026-46300) was disclosed online. Fragnesia is a new variant of Dirty Frag; Due to the logical defects in the processing of shared page fragments by the ESP-in-TCP subsystem during the skb merge process, a local attacker with...
