Ravie LakshmananMar 18, 2026Network Security / Ransomware Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that’s exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software. The vulnerability in question is CVE-2026-20131 (CVSS score: 10.0), a case of insecure deserialization of user-supplied Java byte stream, which could…
Cybersecurity researchers have discovered malicious Google Chrome extensions that come with capabilities to hijack affiliate links, steal data, and collect OpenAI ChatGPT authentication tokens. One of the extensions in question is Amazon Ads Blocker (ID: pnpchphmplpdimbllknjoiopmfphellj), which claims to be a tool to browse Amazon without any sponsored content. It was uploaded to the Chrome…
Dec 30, 2026Ravie LakshmananMalware / Cyber Espionage The Chinese hacking group known as Mustang Panda has leveraged a previously undocumented kernel-mode rootkit driver to deliver a new variant of backdoor dubbed TONESHELL in a cyber attack detected in mid-2025 targeting an unspecified entity in Asia. The findings come from Kaspersky, which observed the new backdoor…
Dec 03, 2025Ravie LakshmananVulnerability / Cloud Security A maximum-severity security flaw has been disclosed in React Server Components (RSC) that, if successfully exploited, could result in remote code execution. The vulnerability, tracked as CVE-2025-55182, carries a CVSS score of 10.0. It allows “unauthenticated remote code execution by exploiting a flaw in how React decodes payloads…
Oct 13, 2025Ravie LakshmananCybersecurity / Hacking News Every week, the cyber world reminds us that silence doesn’t mean safety. Attacks often begin quietly — one unpatched flaw, one overlooked credential, one backup left unencrypted. By the time alarms sound, the damage is done. This week’s edition looks at how attackers are changing the game —…
Oct 06, 2025Ravie LakshmananEmail Security / Zero-Day A now patched security vulnerability in Zimbra Collaboration was exploited as a zero-day earlier this year in cyber attacks targeting the Brazilian military. Tracked as CVE-2025-27915 (CVSS score: 5.4), the vulnerability is a stored cross-site scripting (XSS) vulnerability in the Classic Web Client that arises as a result…
Aug 29, 2025Ravie LakshmananCryptocurrency / Cybercrime Authorities from the Netherlands and the United States have announced the dismantling of an illicit marketplace called VerifTools that peddled fraudulent identity documents to cybercriminals across the world. To that end, two marketplace domains (verif[.]tools and veriftools[.]net) and one blog have been taken down, redirecting site visitors to a…
An abandoned update server associated with input method editor (IME) software Sogou Zhuyin was leveraged by threat actors as part of an espionage campaign to deliver several malware families, including C6DOOR and GTELAM, in attacks primarily targeting users across Eastern Asia. “Attackers employed sophisticated infection chains, such as hijacked software updates and fake cloud storage…
Aug 29, 2025Ravie LakshmananThreat Intelligence / Malware Amazon on Friday said it flagged and disrupted what it described as an opportunistic watering hole campaign orchestrated by the Russia-linked APT29 actors as part of their intelligence gathering efforts. The campaign used “compromised websites to redirect visitors to malicious infrastructure designed to trick users into authorizing attacker-controlled…
Aug 29, 2025Ravie LakshmananZero-Day / Vulnerability The Sangoma FreePBX Security Team has issued an advisory warning about an actively exploited FreePBX zero-day vulnerability that impacts systems with an administrator control panel (ACP) exposed to the public internet. FreePBX is an open-source private branch exchange (PBX) platform widely used by businesses, call centers, and service providers…