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Microsoft Patches 67 Vulnerabilities Including WEBDAV Zero-Day Exploited in the Wild

Microsoft Patches 67 Vulnerabilities Including WEBDAV Zero-Day Exploited in the Wild

Jun 11, 2025 Endpoint Security / Vulnerability
Microsoft has released patches to fix 67 security flaws , including one zero-day bug in Web Distributed Authoring and Versioning (WebDAV) that it said has come under active exploitation in the wild. Of the 67 vulnerabilities, 11 are rated Critical and 56 are rated Important in severity. This includes 26 remote code execution flaws, 17 information disclosure flaws, and 14 privilege escalation flaws. The patches are in addition to 13 shortcomings addressed by the company in its Chromium-based Edge browser since the release of last month's Patch Tuesday update . The vulnerability that has been weaponized in real-world attacks concerns a remote code execution in WebDAV ( CVE-2025-33053 , CVSS score: 8.8) that can be triggered by deceiving users into clicking on a specially crafted URL. The tech giant credited Check Point researchers Alexandra Gofman and David Driker for discovering and reporting the bug. It's worth mentioning that CVE-2025-33053 is the first zero-day vulnerab...
APT28 Uses Microsoft Office CVE-2026-21509 in Espionage-Focused Malware Attacks

APT28 Uses Microsoft Office CVE-2026-21509 in Espionage-Focused Malware Attacks

Feb 03, 2026 Vulnerability / Malware
The Russia-linked state-sponsored threat actor known as APT28 (aka UAC-0001) has been attributed to attacks exploiting a newly disclosed security flaw in Microsoft Office as part of a campaign codenamed Operation Neusploit . Zscaler ThreatLabz said it observed the hacking group weaponizing the shortcoming on January 29, 2026, in attacks targeting users in Ukraine, Slovakia, and Romania, three days after Microsoft publicly disclosed the existence of the bug. The vulnerability in question is CVE-2026-21509 (CVSS score: 7.8), a security feature bypass in Microsoft Office that could allow an unauthorized attacker to send a specially crafted Office file and trigger it. The Microsoft Threat Intelligence Center (MSTIC), Microsoft Security Response Center (MSRC), and Office Product Group Security Team, along with Google Threat Intelligence Group (GTIG), have been credited with discovering and reporting the flaw. "Social engineering lures were crafted in both English and localized ...
Critical Flaws Discovered in Azure App That Microsoft Secretly Installs on Linux VMs

Critical Flaws Discovered in Azure App That Microsoft Secretly Installs on Linux VMs

Sep 15, 2021
Microsoft on Tuesday addressed a quartet of security flaws as part of its  Patch Tuesday updates  that could be abused by adversaries to target Azure cloud customers and elevate privileges as well as allow for remote takeover of vulnerable systems. The list of flaws, collectively called OMIGOD by researchers from Wiz, affect a little-known software agent called Open Management Infrastructure that's automatically deployed in many Azure services - CVE-2021-38647  (CVSS score: 9.8) - Open Management Infrastructure Remote Code Execution Vulnerability CVE-2021-38648  (CVSS score: 7.8) - Open Management Infrastructure Elevation of Privilege Vulnerability CVE-2021-38645  (CVSS score: 7.8) - Open Management Infrastructure Elevation of Privilege Vulnerability CVE-2021-38649  (CVSS score: 7.0) - Open Management Infrastructure Elevation of Privilege Vulnerability Open Management Infrastructure ( OMI ) is an open-source  analogous equivalent  of Win...
cyber security

5 Cloud Security Risks You Can’t Afford to Ignore

websiteSentinelOneEnterprise Security / Cloud Security
Get expert analysis, attacker insights, and case studies in our 2025 risk report.
cyber security

Agile Incident Response: How Leading Teams Execute Fast

websiteSANS InstituteIncident Response / Cybersecurity
See how experienced teams make response decisions under pressure. Plus explore more IR resources.
Hackers Target Over 70 Microsoft Exchange Servers to Steal Credentials via Keyloggers

Hackers Target Over 70 Microsoft Exchange Servers to Steal Credentials via Keyloggers

Jun 24, 2025 Vulnerability / Malware
Unidentified threat actors have been observed targeting publicly exposed Microsoft Exchange servers to inject malicious code into the login pages that harvest their credentials. Positive Technologies, in a new analysis published last week, said it identified two different kinds of keylogger code written in JavaScript on the Outlook login page - Those that save collected data to a local file accessible over the internet Those that immediately send the collected data to an external server The Russian cybersecurity vendor said the attacks have targeted 65 victims in 26 countries worldwide, and marks a continuation of a campaign that was first documented in May 2024 as targeting entities in Africa and the Middle East. At that time, the company said it had detected no less than 30 victims spanning government agencies, banks, IT companies, and educational institutions, with evidence of the first compromise dating back to 2021. The attack chains involve exploiting known flaws in M...
Agent Racoon Backdoor Targets Organizations in Middle East, Africa, and U.S.

Agent Racoon Backdoor Targets Organizations in Middle East, Africa, and U.S.

Dec 02, 2023
Organizations in the Middle East, Africa, and the U.S. have been targeted by an unknown threat actor to distribute a new backdoor called  Agent Racoon . "This malware family is written using the .NET framework and leverages the domain name service (DNS) protocol to create a covert channel and provide different backdoor functionalities," Palo Alto Networks Unit 42 researcher Chema Garcia  said  in a Friday analysis. Targets of the attacks span various sectors such as education, real estate, retail, non-profits, telecom, and governments. The activity has not been attributed to a known threat actor, although it's assessed to be nation-state aligned owing to the victimology pattern and the detection and defense evasion techniques used. The cybersecurity firm is tracking the cluster under the moniker CL-STA-0002. It's currently not clear how these organizations were breached, and when the attacks took place. Some of the other tools deployed by the adversary include a...
⚡ Weekly Recap: Fortinet Exploits, RedLine Clipjack, NTLM Crack, Copilot Attack & More

⚡ Weekly Recap: Fortinet Exploits, RedLine Clipjack, NTLM Crack, Copilot Attack & More

Jan 19, 2026 Hacking News / Cybersecurity
In cybersecurity, the line between a normal update and a serious incident keeps getting thinner. Systems that once felt reliable are now under pressure from constant change. New AI tools, connected devices, and automated systems quietly create more ways in, often faster than security teams can react. This week’s stories show how easily a small mistake or hidden service can turn into a real break-in. Behind the headlines, the pattern is clear. Automation is being used against the people who built it. Attackers reuse existing systems instead of building new ones. They move faster than most organizations can patch or respond. From quiet code flaws to malware that changes while it runs, attacks are focusing less on speed and more on staying hidden and in control. If you’re protecting anything connected—developer tools, cloud systems, or internal networks—this edition shows where attacks are going next, not where they used to be. ⚡ Threat of the Week Critical Fortinet Flaw Comes Under...
Researcher Spots New Malware Claimed to be 'Tailored for Air‑Gapped Networks'

Researcher Spots New Malware Claimed to be 'Tailored for Air‑Gapped Networks'

May 13, 2020
A cybersecurity researcher at ESET today published an analysis of a new piece of malware, a sample of which they spotted on the Virustotal malware scanning engine and believe the hacker behind it is likely interested in some high-value computers protected behind air‑gapped networks. Dubbed ' Ramsay ,' the malware is still under development with two more variants (v2.a and v2.b) spotted in the wild and doesn't yet appear to be a complex attacking framework based upon the details researcher shared. However, before reading anything further, it's important to note that the malware itself doesn't leverage any extraordinary or advanced technique that could let attackers jump air-gapped networks to infiltrate or exfiltrate data from the targeted computers. According to ESET researcher Ignacio Sanmillan, Ramsay infiltrates targeted computers through malicious documents, potentially sent via a spear-phishing email or dropped using a USB drive, and then exploits an ol...
Google Accuses Spanish Spyware Vendor of Exploiting Chrome, Firefox, & Windows Zero-Days

Google Accuses Spanish Spyware Vendor of Exploiting Chrome, Firefox, & Windows Zero-Days

Dec 01, 2022 Threat Detection / Zero Day
A Barcelona-based surveillanceware vendor named Variston IT is said to have surreptitiously planted spyware on targeted devices by exploiting several zero-day flaws in Google Chrome, Mozilla Firefox, and Windows, some of which date back to December 2018. "Their Heliconia framework exploits n-day vulnerabilities in Chrome, Firefox, and Microsoft Defender, and provides all the tools necessary to deploy a payload to a target device," Google Threat Analysis Group (TAG) researchers Clement Lecigne and Benoit Sevens  said  in a write-up. Variston, which has a  bare-bones website , claims to "offer tailor made Information Security Solutions to our customers," "design custom security patches for any kind of proprietary system," and support the "the discovery of digital information by [law enforcement agencies]," among other services. The vulnerabilities, which have been patched by Google, Microsoft, and Mozilla in 2021 and early 2022, are believed to...
⚡ Weekly Recap: iPhone Spyware, Microsoft 0-Day, TokenBreak Hack, AI Data Leaks and More

⚡ Weekly Recap: iPhone Spyware, Microsoft 0-Day, TokenBreak Hack, AI Data Leaks and More

Jun 16, 2025 Cybersecurity / Hacking News
Some of the biggest security problems start quietly. No alerts. No warnings. Just small actions that seem normal but aren't. Attackers now know how to stay hidden by blending in, and that makes it hard to tell when something’s wrong. This week’s stories aren’t just about what was attacked—but how easily it happened. If we’re only looking for the obvious signs, what are we missing right in front of us? Here’s a look at the tactics and mistakes that show how much can go unnoticed. ⚡ Threat of the Week Apple Zero-Click Flaw in Messages Exploited to Deliver Paragon Spyware — Apple disclosed that a security flaw in its Messages app was actively exploited in the wild to target civil society members in sophisticated cyber attacks. The vulnerability, CVE-2025-43200, was addressed by the company in February as part of iOS 18.3.1, iPadOS 18.3.1, iPadOS 17.7.5, macOS Sequoia 15.3.1, macOS Sonoma 14.7.4, macOS Ventura 13.7.4, watchOS 11.3.1, and visionOS 2.3.1. The Citizen Lab said it u...
⚡ Weekly Recap: Critical SAP Exploit, AI-Powered Phishing, Major Breaches, New CVEs & More

⚡ Weekly Recap: Critical SAP Exploit, AI-Powered Phishing, Major Breaches, New CVEs & More

Apr 28, 2025 Cybersecurity / Hacking News
What happens when cybercriminals no longer need deep skills to breach your defenses? Today’s attackers are armed with powerful tools that do the heavy lifting — from AI-powered phishing kits to large botnets ready to strike. And they’re not just after big corporations. Anyone can be a target when fake identities, hijacked infrastructure, and insider tricks are used to slip past security unnoticed. This week’s threats are a reminder: waiting to react is no longer an option. Every delay gives attackers more ground. ⚡ Threat of the Week Critical SAP NetWeaver Flaw Exploited as 0-Day — A critical security flaw in SAP NetWeaver (CVE-2025-31324, CVSS score: 10.0) has been exploited by unknown threat actors to upload JSP web shells with the goal of facilitating unauthorized file uploads and code execution. The attacks have also been observed using the Brute Ratel C4 post-exploitation framework, as well as a well-known technique called Heaven's Gate to bypass endpoint protections. ...
Threat hunting with MITRE ATT&CK and Wazuh

Threat hunting with MITRE ATT&CK and Wazuh

Nov 18, 2022
Threat hunting is the process of looking for malicious activity and its artifacts in a computer system or network. Threat hunting is carried out intermittently in an environment regardless of whether or not threats have been discovered by automated security solutions. Some threat actors may stay dormant in an organization's infrastructure, extending their access while waiting for the right opportunity to exploit discovered weaknesses. Therefore it is important to perform threat hunting to identify malicious actors in an environment and stop them before they achieve their ultimate goal.  To effectively perform threat hunting, the threat hunter must have a systematic approach to emulating possible adversary behavior. This adversarial behavior determines what artifacts can be searched for that indicate ongoing or past malicious activity. MITRE ATT&CK Over the years, the security community has observed that threat actors have commonly used many tactics, techniques, and procedu...
Hackers Backdoor Unpatched Microsoft SQL Database Servers with Cobalt Strike

Hackers Backdoor Unpatched Microsoft SQL Database Servers with Cobalt Strike

Feb 22, 2022
Vulnerable internet-facing Microsoft SQL (MS SQL) Servers are being targeted by threat actors as part of a new campaign to deploy the Cobalt Strike adversary simulation tool on compromised hosts. "Attacks that target MS SQL servers include attacks to the environment where its vulnerability has not been patched, brute forcing, and  dictionary attack  against poorly managed servers," South Korean cybersecurity company AhnLab Security Emergency Response Center (ASEC)  said  in a report published Monday. Cobalt Strike is a commercial, full-featured  penetration testing framework  that allows an attacker to deploy an agent named "Beacon" on the victim machine, granting the operator remote access to the system. Although billed as a red team threat simulation platform,  cracked versions  of the software have been  actively used  by a wide range of threat actors. Intrusions observed by ASEC involve the unidentified actor scanning port 1433 ...
⚡ Weekly Recap: Hyper-V Malware, Malicious AI Bots, RDP Exploits, WhatsApp Lockdown and More

⚡ Weekly Recap: Hyper-V Malware, Malicious AI Bots, RDP Exploits, WhatsApp Lockdown and More

Nov 10, 2025 Cybersecurity / Hacking News
Cyber threats didn’t slow down last week—and attackers are getting smarter. We’re seeing malware hidden in virtual machines, side-channel leaks exposing AI chats, and spyware quietly targeting Android devices in the wild. But that’s just the surface. From sleeper logic bombs to a fresh alliance between major threat groups, this week’s roundup highlights a clear shift: cybercrime is evolving fast, and the lines between technical stealth and strategic coordination are blurring. It’s worth your time. Every story here is about real risks that your team needs to know about right now. Read the whole recap. ⚡ Threat of the Week Curly COMrades Abuses Hyper-V to Hide Malware in Linux VMs — Curly COMrades, a threat actor supporting Russia's geopolitical interests, has been observed abusing Microsoft's Hyper-V hypervisor in compromised Windows machines to create a hidden Alpine Linux-based virtual machine and deploy malicious payloads. This method allows the malware to run completel...
ThreatsDay Bulletin: OAuth Trap, EDR Killer, Signal Phishing, Zombie ZIP, AI Platform Hack & More

ThreatsDay Bulletin: OAuth Trap, EDR Killer, Signal Phishing, Zombie ZIP, AI Platform Hack & More

Mar 12, 2026 Cybersecurity / Hacking News
Another Thursday, another pile of weird security stuff that somehow happened in just seven days. Some of it is clever. Some of it is lazy. A few bits fall into that uncomfortable category of “yeah… this is probably going to show up in real incidents sooner than we’d like.” The pattern this week feels familiar in a slightly annoying way. Old tricks are getting polished. New research shows how flimsy certain assumptions really are. A couple of things that make you stop mid-scroll and think, “wait… people are actually pulling this off?” There’s also the usual mix of strange corners of the ecosystem doing strange things — infrastructure behaving a little too professionally for comfort, tools showing up where they absolutely shouldn’t, and a few cases where the weakest link is still just… people clicking stuff they probably shouldn’t. Anyway. If you’ve got five minutes and a mild curiosity about what attackers, researchers, and the broader internet gremlins were up to lately, this week’...
⚡ Weekly Recap: BadCam Attack, WinRAR 0-Day, EDR Killer, NVIDIA Flaws, Ransomware Attacks & More

⚡ Weekly Recap: BadCam Attack, WinRAR 0-Day, EDR Killer, NVIDIA Flaws, Ransomware Attacks & More

Aug 11, 2025
This week, cyber attackers are moving quickly, and businesses need to stay alert. They’re finding new weaknesses in popular software and coming up with clever ways to get around security. Even one unpatched flaw could let attackers in, leading to data theft or even taking control of your systems. The clock is ticking—if defenses aren’t updated regularly, it could lead to serious damage. The message is clear: don’t wait for an attack to happen. Take action now to protect your business. Here’s a look at some of the biggest stories in cybersecurity this week: from new flaws in WinRAR and NVIDIA Triton to advanced attack techniques you should know about. Let’s get into the details. ⚡ Threat of the Week Trend Micro Warns of Actively Exploited 0-Day — Trend Micro has released temporary mitigations to address critical security flaws in on-premise versions of Apex One Management Console that it said have been exploited in the wild. The vulnerabilities (CVE-2025-54948 and CVE-2025-54987),...
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