Phoenix IT

Category: Application Development

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

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 of 10.0. It has been described as a security feature bypass in Microsoft Office. “Reliance on untrusted inputs in a security decision in Microsoft Office allows an

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Critical Grist-Core Vulnerability Allows RCE Attacks via Spreadsheet Formulas

Critical Grist-Core Vulnerability Allows RCE Attacks via Spreadsheet Formulas

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 as CVE-2026-24002 (CVSS score: 9.1), has been codenamed Cellbreak by Cyera Research Labs. “One malicious formula can turn a spreadsheet into a Remote Code Execution (RCE) beachhead,” security researcher Vladimir Tokarev, who

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

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

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 flexible framework has been put to use against Chinese gambling industries and malicious activities targeting Asian government entities and private organizations, according to Trend Micro. “PeckBirdy is a script-based framework

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Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon Malware

Indian Users Targeted in Tax Phishing Campaign Delivering Blackmoon 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 Threat Response Unit (TRU), involves using phishing emails impersonating the Income Tax Department of India to trick victims into downloading a malicious archive, ultimately granting the threat actors

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