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Security News, Assessments & Alerts Page 58

Security News, Assessments & Alerts

Security Issues, Vulnerabilities, Exploits & Government Alerts

Critical Grist-Core Vulnerability Allows RCE Attacks via Spreadsheet Formulas

Critical Grist-Core Vulnerability Allows RCE Attacks via Spreadsheet Formulas

Ravie LakshmananJan 27, 2026Vulnerability / Cloud Security A critical security flaw has been disclosed in Grist‑Core, an open-source, self-hosted version of the Grist relational spreadsheet-database, that could result in remote code execution. The vulnerability, tracked… 

China-Linked Hackers Have Used the PeckBirdy JavaScript C2 Framework Since 2023

China-Linked Hackers Have Used the PeckBirdy JavaScript C2 Framework Since 2023

Ravie LakshmananJan 27, 2026Web Security / Malware Cybersecurity researchers have discovered a JScript-based command-and-control (C2) framework called PeckBirdy that has been put to use by China-aligned APT actors since 2023 to target multiple environments. The… 

Microsoft Office Zero-Day (CVE-2026-21509) – Emergency Patch Issued for Active Exploitation

Microsoft Office Zero-Day (CVE-2026-21509) – Emergency Patch Issued for Active Exploitation

Ravie LakshmananJan 27, 2026Zero-Day / Vulnerability Microsoft on Monday issued out-of-band security patches for a high-severity Microsoft Office zero-day vulnerability exploited in attacks. The vulnerability, tracked as CVE-2026-21509, carries a CVSS score of 7.8 out… 

Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon Malware

Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon Malware

Ravie LakshmananJan 26, 2026Cyber Espionage / Malware Cybersecurity researchers have discovered an ongoing campaign that’s targeting Indian users with a multi-stage backdoor as part of a suspected cyber espionage campaign. The activity, per the eSentire… 

Malicious VS Code AI Extensions with 1.5 Million Installs Steal Developer Source Code

Malicious VS Code AI Extensions with 1.5 Million Installs Steal Developer Source Code

Ravie LakshmananJan 26, 2026AI Security / Vulnerability Cybersecurity researchers have discovered two malicious Microsoft Visual Studio Code (VS Code) extensions that are advertised as artificial intelligence (AI)-powered coding assistants, but also harbor covert functionality to… 

Firewall Flaws, AI-Built Malware, Browser Traps, Critical CVEs & More

Firewall Flaws, AI-Built Malware, Browser Traps, Critical CVEs & More

Ravie LakshmananJan 26, 2026Hacking News / Cybersecurity Security failures rarely arrive loudly. They slip in through trusted tools, half-fixed problems, and habits people stop questioning. This week’s recap shows that pattern clearly. Attackers are moving…