CVE-2026-20349 can be exploited remotely without authentication against Secure Firewall ASA and FTD devices.
The post Cisco Patches Firewall Zero-Day Exploited for DoS Attacks appeared first on SecurityWeek.
Google says Chrome cuts 7 billion unwanted Android notifications a day to fight abuse
Google says Chrome’s anti-abuse systems reduced unwanted notifications on Android by more than 7 billion per day during the first quarter of 2026. […]
DeadLock ransomware uses blockchain to resist infrastructure takedown
The DeadLock ransomware operation is using a decentralized infrastructure that relies on blockchain-backed services to protect its communication with victims and data-leak activity. […]
Sandworm hackers target IT pros with trojanized WireGuard VPN client
Hackers associated with the Russian threat group Sandworm have been targeting system administrators and IT professionals through fake job offers since at least May. […]
Microsoft Patches 398 Flaws Including a Windows Driver Zero-Day Under Active Attack
Microsoft released its monthly security updates on Tuesday, and one of the flaws it closed is already being used in attacks.
The bug sits in a core Windows kernel driver that handles network socket operations. An attacker with code already running on a machine can use it to escalate to SYSTEM. That patch goes out first.
The flaw is tracked as CVE-2026-68820 (CVSS score: 7.0) and is the only
Cisco warns of ASA and FTD VPN flaw exploited to crash devices
Cisco is warning that a high-severity denial-of-service vulnerability in Secure Firewall ASA and Threat Defense (FTD) software is being actively exploited in attacks to remotely crash affected devices. […]
Kimwolf v7 Android Botnet Makes HTTP/2 DDoS Traffic Look Like Legitimate Browsing
Cybersecurity researchers have discovered a new version of the Kimwolf/AISURU Android and Internet of Things (IoT) botnet that comes with significant improvements to improve its operational resilience and conduct distributed denial-of-service (DDoS) attacks.
The new version, tracked as Kimwolf v7, was discovered by Palo Alto Networks Unit 42 in February 2026.
“Kimwolf v7 adds an HTTP/2-based
Zoom Annotation Flaws Could Let a Meeting Participant Hijack Another Attendee’s Client
Anyone sharing their screen on a Zoom call could have taken over the computers of everyone watching, and anyone watching could have taken over the presenter’s.
The flaw sat in the annotation tool, the feature that lets participants draw and type on a shared screen, and it asked nothing of the victim beyond being in the meeting. No click, no download, no prompt, and nothing on screen to show it
August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-Day
A use-after-free in the afd.sys Windows kernel-mode driver has been exploited to gain SYSTEM privileges.
The post August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-Day appeared first on SecurityWeek.
Sandworm-Linked UAC-0145 Uses Fake Job Interviews to Push VPN That Can Run Commands
The Computer Emergency Response Team of Ukraine (CERT-UA) has disclosed details of a new social engineering campaign orchestrated by Russian nation-state threat actors targeting IT workers in the country by masquerading as recruiters to trick them into installing malware.
CERT-UA pinned the activity on a threat cluster it tracks as UAC-0145, which is a subgroup within Sandworm (aka APT44,