Microsoft warned that attackers are exploiting a new Exchange Server zero-day vulnerability, tracked as CVE-2026-42897, in the wild. Microsoft warned that threat actors are actively exploiting a new Exchange Server zero-day vulnerability tracked as CVE-2026-42897 (CVSS score 8.1). The vulnerability…
Category: Security Affairs
Ghostwriter group resumes attacks on Ukrainian Government targets
ESET uncovered new Ghostwriter (aka FrostyNeighbor) activity targeting Ukrainian government organizations in a campaign active since March 2026. ESET researchers published a new report documenting fresh activity attributed to the APT group FrostyNeighbor, aka Ghostwriter, active since at least March…
Researchers uncover YellowKey and GreenPlasma Windows Zero-Days
Researchers disclosed two new Windows zero-days named YellowKey and GreenPlasma affecting BitLocker and the CTFMON framework. A security researcher known as Chaotic Eclipse, also called Nightmare-Eclipse, disclosed two new Windows zero-day vulnerabilities named YellowKey and GreenPlasma. The flaws affect BitLocker…
Pwn2Own Berlin 2026, Day One: $523,000 paid out, AI products fall
Pwn2Own Berlin 2026 day one saw 22 entries and 24 zero-days across major software, with researchers earning $523,000 in total rewards. Day one of Pwn2Own Berlin 2026 featured 22 entries targeting widely used technologies, including browsers, operating systems, AI platforms,…
U.S. CISA adds a flaw in Cisco Catalyst SD-WAN to its Known Exploited Vulnerabilities catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in Cisco Catalyst SD-WAN to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a flaw in Cisco Catalyst SD-WAN, tracked as CVE-2026-20182 (CVSS score of…
Linux Kernel bug Fragnesia allows local root access attacks
Fragnesia, a new Linux kernel flaw tracked as CVE-2026-46300, could let local attackers gain root access through page cache corruption. Researchers disclosed a new Linux kernel privilege escalation vulnerability named Fragnesia, tracked as CVE-2026-46300 (CVSS score of 7.8). The flaw…
Broadcom releases VMware Fusion security update for root access bug
Broadcom patched a high-severity VMware Fusion flaw, CVE-2026-41702, that could let local attackers gain root privileges. Broadcom released a security update for VMware Fusion to address a high-severity vulnerability, tracked as CVE-2026-41702, that could allow local attackers to escalate privileges…
NGINX Rift: an 18-year-old flaw in the world’s most deployed web server just came to light
Researchers found a critical 18-year-old buffer overflow flaw in NGINX, tracked as CVE-2026-42945 and named NGINX Rift. If you run NGINX, and statistically speaking, there is a very good chance you do, this week brought news worth stopping for. Security…
FamousSparrow targets Azerbaijani energy sector in multi-wave espionage campaign
Chinese-linked FamousSparrow repeatedly targeted an Azerbaijani oil and gas company, reusing the same entry point in three intrusions from Dec 2025 to Feb 2026. Chinese-linked threat actor FamousSparrow has conducted a sustained intrusion campaign against an Azerbaijani oil and gas…
Nitrogen Ransomware claims massive data theft from Foxconn
Foxconn confirmed a cyberattack on some North American factories. The Nitrogen ransomware group claims it stole 8TB of data from the firm. Foxconn confirmed that several of its North American factories were affected by a cyberattack. The manufacturer confirmed it…
Microsoft Patch Tuesday for May 2026 fix 138 bugs, some of them are alarming
Microsoft’s May 2026 Patch Tuesday fixed 138 flaws, including 30 critical bugs, across Windows, Office, Azure, Edge, SQL Server, and more. Microsoft’s May 2026 Patch Tuesday patched 138 vulnerabilities in a single release. That is a number that gives pause…
OpenLoop Health confirms January 2026 Data breach affecting 716,000
In January 2026, telehealth infrastructure firm OpenLoop Health suffered a security breach that exposed information of 716,000 people. OpenLoop Health confirmed a January 2026 cyberattack that exposed personal information of 716,000 individuals using its telehealth services. The breach was reported…
Quest KACE SMA flaw CVE-2025-32975: when one unpatched tool opens the door to 60 organizations
CVE-2025-32975 is a critical flaw in Quest KACE SMA used for endpoint management. If exploited, it could impact all managed systems across organizations. CVE-2025-32975 is a critical flaw in Quest KACE SMA used for endpoint management. If exploited, it could…
Instructure settles with hackers following massive student data theft
Educational tech firm Instructure reached a deal with hackers after a major Canvas breach exposed data stolen from schools and universities. Educational tech firm Instructure says it reached an agreement with the cybercrime group behind a major Canvas data theft,…
Critical Fortinet vulnerabilities fixed in FortiSandbox and FortiAuthenticator
Fortinet patched critical flaws in FortiSandbox and FortiAuthenticator that could let attackers remotely execute code on unpatched systems. Fortinet addressed two critical vulnerabilities affecting FortiSandbox and FortiAuthenticator. The flaws could allow attackers to execute arbitrary commands or code on unpatched…
Hackers accessed BWH Hotels reservation system for months
BWH Hotels says hackers accessed guest reservation data, including names and contacts, for over six months across multiple hotel brands. BWH Hotels disclosed a data breach, with threat actors having had access to guest reservation data for more than six…
The world’s most “Dangerous” AI, Anthropic’s Mythos, found only one flaw in curl
Anthropic’s AI found five vulnerabilities in curl, but only one low-severity issue proved to be a real vulnerability. In April, Anthropic made considerable noise announcing Mythos, a new artificial intelligence model described as so effective at identifying vulnerabilities in code…
Attackers exploit cPanel CVE-2026-41940 to deploy Filemanager Backdoor
Attackers are exploiting cPanel flaw CVE-2026-41940 to install the Filemanager backdoor and gain unauthorized admin access. Cybercriminals are actively exploiting the critical cPanel vulnerability CVE-2026-41940 (CVSS score of 9.3) to deploy a backdoor called Filemanager on compromised servers. cPanel is a…
WannaCry, the ransomware attack that changed the history of cybersecurity
WannaCry showed how unpatched flaws and leaked cyber tools can cripple global systems, reshaping cybersecurity defenses worldwide. In memory of the day the digital world was shaken, but learned to fight back. The WannaCry ransomware attack represents one of the…
Android banking Trojan TrickMo evolves using TON network for C2
ThreatFabric found a new TrickMo Android trojan focused on stealth and persistence, moving its command-and-control traffic to the TON network. Security researchers at ThreatFabric have recently identified a new version of TrickMo, a dangerous Android banking trojan that shows how…