Cisco fixed actively exploited Unified Communications zero day

Cisco patched a critical zero-day RCE flaw (CVE-2026-20045) in Unified Communications and Webex Calling that is actively exploited in the wild. Cisco patched a critical zero-day remote code execution flaw, tracked as CVE-2026-20045 (CVSS score of 8.2), actively exploited in attacks. An unauthenticated, remote attacker can exploit the flaw to execute arbitrary commands on the […]

January 22, 2026
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Zoom fixed critical Node Multimedia Routers flaw

Zoom addressed a critical security vulnerability, tracked as CVE-2026-22844, that could result in remote code execution. Cloud-based video conferencing and online collaboration platform Zoom released security updates to address multiple vulnerabilities, including command injection, tracked as CVE-2026-22844 (CVSS score of 9.9), in Zoom Node Multimedia Routers (MMRs) that could result in remote code execution. “A […]

January 21, 2026
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ACME flaw in Cloudflare allowed attackers to reach origin servers

Cloudflare fixed a flaw in its ACME validation logic that could let attackers bypass security checks and access protected origin servers. Cloudflare fixed a flaw in its ACME HTTP-01 validation logic that could let attackers bypass security checks and reach origin servers. The issue stemmed from how Cloudflare’s edge handled requests to the /.well-known/acme-challenge/ path. […]

January 21, 2026
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Crooks impersonate LastPass in campaign to harvest master passwords

Password manager LastPass warns of an active phishing campaign impersonating the service to steal users’ master passwords. LastPass warned users about an active phishing campaign that began around January 19, 2026. Attackers impersonate the service with emails claiming urgent maintenance and urge users to back up their password vaults within 24 hours. The messages use […]

January 21, 2026
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VoidLink shows how one developer used AI to build a powerful Linux malware

VoidLink is a cloud-focused Linux malware, likely built by one person using AI, offering loaders, implants, rootkit evasion, and modular plugins. Check Point researchers uncovered VoidLink, a cloud-focused Linux malware framework likely built by a single developer with help from an AI model. VoidLink includes custom loaders, implants, rootkit-based evasion features, and dozens of plugins […]

January 21, 2026
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PDFSIDER Malware – Exploitation of DLL Side-Loading for AV and EDR Evasion

Threat actors use PDFSIDER malware with social engineering and DLL sideloading to bypass AV/EDR, and ransomware gangs already abuse it. Resecurity has learned about PDFSIDER during an investigation of a network intrusion attempt that was successfully prevented by a Fortune 100 energy corporation. The threat actor contacted their staff, impersonating technical support, and used social […]

January 21, 2026
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Access broker caught: Jordanian pleads guilty to hacking 50 companies

A Jordanian man pleaded guilty in the US to selling illegal access to 50 compromised enterprise networks after an undercover sting. A Jordanian national Feras Khalil Ahmad Albashiti (40), living in Georgia, pleaded guilty in a US court to acting as an access broker, selling unauthorized access to the networks of at least 50 companies. […]

January 20, 2026
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Telegram-based illicit billionaire marketplace Tudou Guarantee stopped transactions

Major Telegram-based illicit marketplace Tudou Guarantee appears to be shutting down its operations, according to Elliptic. Blockchain cybersecurity firm Elliptic reports that Tudou Guarantee, a major Telegram-based illicit marketplace in Southeast Asia, has stopped transactions in its public groups after handling over $12 billion. The researchers noted that other services still run, so a full […]

January 20, 2026
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UK NCSC warns of Russia-linked hacktivists DDoS attacks

The UK government warns Russia-linked hacktivists are still carrying out DDoS attacks on critical infrastructure and local government systems The UK government warns that Russia-linked hacktivists are continuing DDoS attacks against critical infrastructure and local government systems. “Today, 19th January 2026, the National Cyber Security Centre (NCSC) – a part of GCHQ – has issued an […]

January 20, 2026
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