Blog

Uma imagem que ilustra uma pessoa mexendo em diversos computadores.

Record-Breaking Cloud Incident Brings Outage Through the Internet

November 19, 2025 | NSFOCUS

November 18, 2025 – Cloudflare Global Outage (not a DDoS) The timing and Cloudflare’s brief initial misdiagnosis caused widespread confusion, with many people incorrectly believing Cloudflare had been DDoSed. Some reports even mentioned that the Cloudflare Incident was linked to an earlier DDoS incident towards Microsoft Azure. In reality, the two events were unrelated. October […]

Dr. Richard Zhao from NSFOCUS Selected into 2025 Top 10 Cybersecurity Professionals by Leading Consulting Company

November 18, 2025 | NSFOCUS

SANTA CLARA, Calif., Nov 18, 2025 — International Data Corporation (IDC) officially released the “2025 IDC China Top 10 Cybersecurity Professionals” at the 10th IDC China CIO Summit last month. This honor is intended to recognize outstanding individuals who have made significant contributions to China’s cybersecurity market this year. Dr. Richard Zhao, Chief Strategy Officer […]

Uma imagem que ilustra um teclado com uma tecla escrita ddos attack.

NSFOCUS Cloud DDoS Protection Service (Cloud DPS) Detected and Mitigated an 800G+ DDoS Attack towards a Critical Infrastructure Operator

November 17, 2025 | NSFOCUS

Incident Summary On October 21, 2025, NSFOCUS Cloud DDoS Protection Service (Cloud DPS) detected and mitigated an 800G+ DDoS attack towards a critical infrastructure operator. The target network sustained a multi-vector volumetric DDoS attack peaking at 843.4 Gbps and 73.6 Mpps. The assault combined UDP-based floods (dominant) with amplification and reflection techniques. NSFOCUS Cloud DPS […]

Microsoft’s November Security Update of High-Risk Vulnerability Notice for Multiple Products

November 14, 2025 | NSFOCUS

Overview On November 12, NSFOCUS CERT detected that Microsoft released the November Security Update patch, which fixed 63 security issues involving widely used products such as Windows, Microsoft Office, Microsoft SQL Server, Azure, and Microsoft Visual Studio, including privilege escalation, high-risk vulnerability types such as remote code execution. Among the vulnerabilities fixed by Microsoft’s monthly […]

Uma imagem que ilustra um hacker.

NSFOCUS Monthly APT Insights – September 2025

November 12, 2025 | NSFOCUS

Regional APT Threat Situation In September 2025, the global threat hunting system of Fuying Lab detected a total of 24 APT attack activities. These activities were primarily concentrated in regions including East Asia, South Asia, as shown in the following figure. Regarding the activity levels of different groups, the most active APT groups this month […]

JumpServer Connection Token Improper Authentication Vulnerability (CVE-2025-62712) Notice

November 7, 2025 | NSFOCUS

Overview Recently, NSFOCUS CERT detected that JumpServer issued a security bulletin to fix the JumpServer connection token improper authentication vulnerability (CVE-2025-62712); Due to improper authentication of JumpServer’s /api/v1/authentication/super-connection-token/hyper-connected endpoint, attackers with low-privilege accounts can obtain the connection tokens of all system users and connect to managed assets as them, thereby achieving unauthorized access and privilege […]

NSFOCUS in SAS 2025: Unveiling Secrets Behind Large-Scale DDoS Attacks on AI Platform and Social Media

November 4, 2025 | NSFOCUS

SANTA CLARA, Calif., November 4, 2025 – The 18th Global Security Analyst Summit (SAS) concluded successfully in Khao Lak, Thailand. Focused on the complexity of APT attacks, the summit exposed the latest attack activities from Hacking Team and disclosed multiple major security risk incidents. It gathered top global cybersecurity experts, academic elites, and law enforcement representatives to […]

Apache Tomcat Path Traversal Vulnerability (CVE-2025-55752) Notice

October 29, 2025 | NSFOCUS

Overview Recently, NSFOCUS CERT detected that Apache issued a security bulletin to fix the Apache Tomcat path traversal vulnerability (CVE-2025-55752); This vulnerability is a flaw introduced when fixing CVE-2016-5388. Since the rewritten URL is normalized before URL decoding, if the system is configured with rewrite rules to rewrite query parameters into the URL, an authenticated […]

Windows Server Update Service (WSUS) Remote Code Execution Vulnerability (CVE-2025-59287) Notice

October 22, 2025 | NSFOCUS

Overview Recently, NSFOCUS CERT detected that Microsoft released a security update that fixed the Windows Server Update Service (WSUS) remote code execution vulnerability (CVE-2025-59287); Because WSUS’s GetCookie does not perform type verification when processing objects, an unauthenticated attacker can achieve remote code execution by deserializing malicious data to control the target server. The CVSS score […]

Beware of the Risk of Open-Source License Changes

October 22, 2025 | NSFOCUS

It is not uncommon for open source licenses to change. When licenses change, users often need to re-evaluate compliance risks. Take Redis as an example. Redis is a popular key-value store whose open source license has undergone changes from BSD to SSPL and then to AGPL, which has caused widespread discussion and controversy in the […]