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It's Patch Tuesday once again…time for another round of security updates for the Windows operating system and other Microsoft products. This month Windows users and system administrators need to immediately take care of a total of 63 security vulnerabilities, of which 12 are rated critical, 49 important and one moderate and one low in severity. Two of the vulnerabilities patched by the tech giant this month are listed as publicly known at the time of release, and one flaw is reported as being actively exploited in the wild by multiple cybercriminal groups. Zero-Day Vulnerability Being Exploited by Cyber Criminals The zero-day vulnerability, tracked as CVE-2018-8589 , which is being exploited in the wild by multiple advanced persistent threat groups was first spotted and reported by security researchers from Kaspersky Labs. The flaw resides in the Win32k component (win32k.sys), which if exploited successfully, could allow a malicious program to execute arbitrary code...

Get ready to install a fairly large batch of security patches onto your Windows computers. As part of its September Patch Tuesday , Microsoft has released a large batch of security updates to patch a total of 81 CVE-listed vulnerabilities, on all supported versions of Windows and other MS products. The latest security update addresses 27 critical and 54 important vulnerabilities in severity, of which 38 vulnerabilities are impacting Windows, 39 could lead to Remote Code Execution (RCE). Affected Microsoft products include: Internet Explorer Microsoft Edge Microsoft Windows .NET Framework Skype for Business and Lync Microsoft Exchange Server Microsoft Office, Services and Web Apps Adobe Flash Player .NET 0-Day Flaw Under Active Attack According to the company, four of the patched vulnerabilities are publicly known, one of which has already been actively exploited by the attackers in the wild. Here's the list of publically known flaws and their impact: W...

Microsoft on Tuesday  issued fixes for 56 flaws , including a critical vulnerability that's known to be actively exploited in the wild. In all, 11 are listed as Critical, 43 are listed as Important, and two are listed as Moderate in severity — six of which are previously disclosed vulnerabilities. The updates cover .NET Framework, Azure IoT, Microsoft Dynamics, Microsoft Edge for Android, Microsoft Exchange Server, Microsoft Office, Microsoft Windows Codecs Library, Skype for Business, Visual Studio, Windows Defender, and other core components such as Kernel, TCP/IP, Print Spooler, and Remote Procedure Call (RPC). A Windows Win32k Privilege Escalation Vulnerability The most critical of the flaws is a Windows Win32k privilege escalation vulnerability (CVE-2021-1732, CVSS score 7.8) that allows attackers with access to a target system to run malicious code with elevated permissions. Microsoft credited JinQuan, MaDongZe, TuXiaoYi, and LiHao of DBAPPSecurity for discovering and re...

A Google Chrome extension with a "Featured" badge and six million users has been observed silently gathering every prompt entered by users into artificial intelligence (AI)-powered chatbots like OpenAI ChatGPT, Anthropic Claude, Microsoft Copilot, DeepSeek, Google Gemini, xAI Grok, Meta AI, and Perplexity. The extension in question is Urban VPN Proxy , which has a 4.7 rating on the Google Chrome Web Store. It's advertised as the "best secured Free VPN access to any website, and unblock content." Its developer is a Delaware-based company named Urban Cyber Security Inc . On the Microsoft Edge Add-ons marketplace, it has 1.3 million installations .  Despite claiming that it allows users to "protect your online identity, stay protected, and hide your IP," an update was pushed to users on July 9, 2025, when version 5.5.0 was released with the AI data harvesting enabled by default using hard-coded settings. Specifically, this is achieved by means of a t...

It's time to gear up for the latest May 2018 Patch Tuesday. Microsoft has today released security patches for a total of 67 vulnerabilities, including two zero-days that have actively been exploited in the wild by cybercriminals, and two publicly disclosed bugs. In brief, Microsoft is addressing 21 vulnerabilities that are rated as critical, 42 rated important, and 4 rated as low severity. These patch updates address security flaws in Microsoft Windows, Internet Explorer, Microsoft Edge, Microsoft Office, Microsoft Office Exchange Server, Outlook, .NET Framework, Microsoft Hyper-V, ChakraCore, Azure IoT SDK, and more. 1) Double Kill IE 0-day Vulnerability The first zero-day vulnerability ( CVE-2018-8174 ) under active attack is a critical remote code execution vulnerability that was revealed by Chinese security firm Qihoo 360 last month and affected all supported versions of Windows operating systems. Dubbed " Double Kill " by the researchers, the vulnera...

Microsoft said it has revamped the Internet Explorer (IE) mode in its Edge browser after receiving "credible reports" in August 2025 that unknown threat actors were abusing the backward compatibility feature to gain unauthorized access to users' devices. "Threat actors were leveraging basic social engineering techniques alongside unpatched (0-day) exploits in Internet Explorer's JavaScript engine (Chakra) to gain access to victim devices," the Microsoft Browser Vulnerability Research team said in a report published last week. In the attack chain documented by the Windows maker, the threat actors have been found to trick unsuspecting users into visiting an seemingly legitimate website and then employ a flyout on the page to instruct them into reloading the page in IE mode. Once the page is reloaded, the attackers are said to have weaponized an unspecified exploit in the Chakra engine to obtain remote code execution. The infection sequence culminates w...

Update (Monday, May 08, 2017):  Microsoft has released an emergency security update to patch below-reported crazy bad remote code execution vulnerability in its Microsoft Malware Protection Engine (MMPE) that affects Windows 7, 8.1, RT and 10 computers, as well as Windows Server 2016 operating systems. Google Project Zero's security researchers have discovered another critical remote code execution (RCE) vulnerability in Microsoft’s Windows operating system, claiming that it is something truly bad. Tavis Ormandy announced during the weekend that he and another Project Zero researcher Natalie Silvanovich discovered "the worst Windows remote code [execution vulnerability] in recent memory. This is crazy bad. Report on the way." Ormandy did not provide any further details of the Windows RCE bug, as Google gives a 90-day security disclosure deadline to all software vendors to patch their products and disclose it to the public. This means the details of the new RC...

A Microsoft Windows policy loophole has been observed being exploited primarily by native Chinese-speaking threat actors to forge signatures on kernel-mode drivers. "Actors are leveraging multiple open-source tools that alter the signing date of kernel mode drivers to load malicious and unverified drivers signed with expired certificates," Cisco Talos said in an  exhaustive two-part report  shared with The Hacker News. "This is a major threat, as access to the kernel provides complete access to a system, and therefore total compromise." Following responsible disclosure, Microsoft  said  it has taken steps to block all certificates to mitigate the threat. It further stated that its investigation found "the activity was limited to the abuse of several developer program accounts and that no Microsoft account compromise has been identified." The tech giant, besides suspending developer program accounts involved in the incident, emphasized that the threat a...

Microsoft has rolled out  Patch Tuesday updates  to address multiple security vulnerabilities in Windows and other software, including one actively exploited flaw that's being abused to deliver Emotet, TrickBot, or Bazaloader malware payloads. The latest monthly release for December fixes a total of 67 flaws, bringing the total number of bugs patched by the company this year to 887, according to the  Zero Day Initiative . Seven of the 67 flaws are rated Critical and 60 are rated as Important in severity, with five of the issues publicly known at the time of release. It's worth noting that this is in addition to the  21 flaws  resolved in the Chromium-based Microsoft Edge browser. The most critical of the lot is  CVE-2021-43890  (CVSS score: 7.1), a Windows AppX installer spoofing vulnerability that Microsoft said could be exploited to achieve arbitrary code execution. The lower severity rating is indicative of the fact that code execution hinges on ...

This week has been crazy in the world of hacking and online security. From Thailand to London to the US, we've seen arrests, spies at work, and big power moves online. Hackers are getting caught. Spies are getting better at their jobs. Even simple things like browser add-ons and smart home gadgets are being used to attack people. Every day, there's a new story that shows how quickly things are changing in the fight over the internet. Governments are cracking down harder on cybercriminals. Big tech companies are rushing to fix their security. Researchers keep finding weak spots in apps and devices we use every day. We saw fake job recruiters on LinkedIn spying on people, huge crypto money-laundering cases, and brand-new malware made just to beat Apple's Mac protections. All these stories remind us: the same tech that makes life better can very easily be turned into a weapon. Here's a simple look at the biggest cybersecurity news happening right now — from the hidde...

Microsoft on Tuesday released fixes for a whopping 183 security flaws spanning its products, including three vulnerabilities that have come under active exploitation in the wild, as the tech giant officially ended support for its Windows 10 operating system unless the PCs are enrolled in the Extended Security Updates ( ESU ) program. Of the 183 vulnerabilities, eight of them are non-Microsoft issued CVEs. As many as 165 flaws have been rated as Important in severity, followed by 17 as Critical and one as Moderate. The vast majority of them relate to elevation of privilege vulnerabilities (84), with remote code execution (33), information disclosure (28), spoofing (14), denial-of-service (11), and security feature bypass (11) issues accounting for the rest. The updates are in addition to the 25 vulnerabilities Microsoft addressed in its Chromium-based Edge browser since the release of September 2025's Patch Tuesday update . The two Windows zero-days that have come under activ...

Cybersecurity never stops—and neither do hackers. While you wrapped up last week, new attacks were already underway. From hidden software bugs to massive DDoS attacks and new ransomware tricks, this week’s roundup gives you the biggest security moves to know. Whether you’re protecting key systems or locking down cloud apps, these are the updates you need before making your next security decision. Take a quick look to start your week informed and one step ahead. ⚡ Threat of the Week Cisco 0-Day Flaws Under Attack — Cybersecurity agencies warned that threat actors have exploited two security flaws affecting Cisco firewalls as part of zero-day attacks to deliver previously undocumented malware families like RayInitiator and LINE VIPER. The RayInitiator and LINE VIPER malware represent a significant evolution on that used in the previous campaign, both in sophistication and its ability to evade detection. The activity involves the exploitation of CVE-2025-20362 (CVSS score: 6.5) a...

Behind every click, there’s a risk waiting to be tested. A simple ad, email, or link can now hide something dangerous. Hackers are getting smarter, using new tools to sneak past filters and turn trusted systems against us. But security teams are fighting back. They’re building faster defenses, better ways to spot attacks, and stronger systems to keep people safe. It’s a constant race — every move by attackers sparks a new response from defenders. In this week’s ThreatsDay Bulletin, we look at the latest moves in that race — from new malware and data leaks to AI tools, government actions, and major security updates shaping the digital world right now. U.K. moves to tighten cyber rules for key sectors U.K. Debuts Cyber Security and Resilience Bill The U.K. government has proposed a new Cyber Security and Resilience Bill that aims to strengthen national security and secure public services like healthcare, drinking wat...

Can a harmless click really lead to a full-blown cyberattack? Surprisingly, yes — and that’s exactly what we saw in last week’s activity. Hackers are getting better at hiding inside everyday actions: opening a file, running a project, or logging in like normal. No loud alerts. No obvious red flags. Just quiet entry through small gaps — like a misconfigured pipeline, a trusted browser feature, or reused login tokens. These aren’t just tech issues — they’re habits being exploited. Let’s walk through the biggest updates from the week and what they mean for your security. ⚡ Threat of the Week Recently Patched Windows Flaw Comes Under Active Exploitation — A recently patched security flaw affecting Windows NTLM has been exploited by malicious actors to leak NTLM hashes or user passwords and infiltrate systems since March 19, 2025. The flaw, CVE-2025-24054 (CVSS score: 6.5), is a hash disclosure spoofing bug that was fixed by Microsoft last month as part of its Patch Tuesday updates...

If you use a smartphone, browse the web, or unzip files on your computer, you are in the crosshairs this week. Hackers are currently exploiting critical flaws in the daily software we all rely on—and in some cases, they started attacking before a fix was even ready. Below, we list the urgent updates you need to install right now to stop these active threats. ⚡ Threat of the Week Apple and Google Release Fixes for Actively Exploited Flaws — Apple released security updates for iOS, iPadOS, macOS, tvOS, watchOS, visionOS, and Safari web browser to address two zero-days that the company said have been exploited in highly targeted attacks. CVE-2025-14174 has been described as a memory corruption issue, while the second, CVE-2025-43529, is a use-after-free bug. They can both be exploited using maliciously crafted web content to execute arbitrary code. CVE-2025-14174 was also addressed by Google in its Chrome browser since it resides in its open-source Almost Native Graphics Layer Engi...