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Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Services (WSUS) vulnerability with a proof-of-concept (Poc) exploit publicly available and has come under active exploitation in the wild. The vulnerability in question is CVE-2025-59287 (CVSS score: 9.8), a remote code execution flaw in WSUS that was originally fixed by the tech giant as part of its Patch Tuesday update published last week. Three security researchers, MEOW, f7d8c52bec79e42795cf15888b85cbad, and Markus Wulftange with CODE WHITE GmbH, have been acknowledged for discovering and reporting the bug. The shortcoming concerns a case of deserialization of untrusted data in WSUS that allows an unauthorized attacker to execute code over a network. It's worth noting that the vulnerability does not impact Windows servers that do not have the WSUS Server Role enabled. In a hypothetical attack scenario, a remote, unauthenticated attacker could send a crafted eve...

Threat actors associated with the Cuba ransomware have been linked to previously undocumented tactics, techniques and procedures (TTPs), including a new remote access trojan called ROMCOM RAT on compromised systems. The  new findings  come from Palo Alto Networks' Unit 42 threat intelligence team, which is tracking the double extortion ransomware group under the  constellation-themed moniker   Tropical Scorpius . Cuba ransomware (aka  COLDDRAW ), which was first detected in December 2019, reemerged on the threat landscape in November 2021 and has been attributed to attacks against 60 entities in five critical infrastructure sectors, amassing at least $43.9 million in ransom payments. Of the 60 victims listed on its data leak site, 40 are located in the U.S., indicating a not as global distribution of targeted organizations as other ransomware gangs. "Cuba ransomware is distributed through Hancitor malware, a loader known for dropping or executing stealers,...

The Iranian threat actor known as MuddyWater has been attributed to a new command-and-control (C2) infrastructure called  DarkBeatC2 , becoming the latest such tool in its arsenal after  SimpleHarm ,  MuddyC3, PhonyC2 , and  MuddyC2Go . "While occasionally switching to a new remote administration tool or changing their C2 framework, MuddyWater's methods remain constant," Deep Instinct security researcher Simon Kenin  said  in a technical report published last week. MuddyWater, also called Boggy Serpens, Mango Sandstorm, and TA450, is assessed to be affiliated with Iran's Ministry of Intelligence and Security (MOIS). It's known to be active since at least 2017, orchestrating spear-phishing attacks that lead to the deployment of various legitimate Remote Monitoring and Management (RMM) solutions on compromised systems. Prior findings from Microsoft show that the group has ties with another Iranian threat activity cluster tracked as  Storm-1084  ...

The cyber world never hits pause, and staying alert matters more than ever. Every week brings new tricks, smarter attacks, and fresh lessons from the field. This recap cuts through the noise to share what really matters—key trends, warning signs, and stories shaping today's security landscape. Whether you're defending systems or just keeping up, these highlights help you spot what's coming before it lands on your screen. ⚡ Threat of the Week Oracle 0-Day Under Attack — Threat actors with ties to the Cl0p ransomware group have exploited a zero-day flaw in E-Business Suite to facilitate data theft attacks. The vulnerability, tracked as CVE-2025-61882 (CVSS score: 9.8), concerns an unspecified bug that could allow an unauthenticated attacker with network access via HTTP to compromise and take control of the Oracle Concurrent Processing component. In a post shared on LinkedIn, Charles Carmakal, CTO of Mandiant at Google Cloud, said "Cl0p exploited multiple vulnerabilities in Ora...

The Russian advanced persistent threat (APT) group known as COLDRIVER has been attributed to a fresh round of ClickFix-style attacks designed to deliver two new "lightweight" malware families tracked as BAITSWITCH and SIMPLEFIX. Zscaler ThreatLabz, which detected the new multi-stage ClickFix campaign earlier this month, described BAITSWITCH as a downloader that ultimately drops SIMPLEFIX, a PowerShell backdoor. COLDRIVER , also tracked as Callisto, Star Blizzard, and UNC4057, is the moniker assigned to a Russia-linked threat actor that's known to target a wide range of sectors since 2019. While early campaign waves were observed using spear-phishing lures to direct targets to credential harvesting pages, the group has been fleshing out its arsenal with custom tools like SPICA and LOSTKEYS , which underscores its technical sophistication. The adversary's use of ClickFix tactics was previously documented by the Google Threat Intelligence Group (GTIG) back in May 2...

The threat actor known as Paper Werewolf has been observed exclusively targeting Russian entities with a new implant called PowerModul . The activity, which took place between July and December 2024, singled out organizations in the mass media, telecommunications, construction, government entities, and energy sectors, Kaspersky said in a new report published Thursday. Paper Werewolf, also known as GOFFEE, is assessed to have conducted at least seven campaigns since 2022, according to BI.ZONE, with the attacks mainly aimed at government, energy, financial, media, and other organizations. Attack chains mounted by the threat actor have also been observed incorporating a disruptive component, wherein the intrusions go beyond distributing malware for espionage purposes to also change passwords belonging to employee accounts. The attacks themselves are initiated via phishing emails that contain a macro-laced lure document, which, upon opening and enabling macros, paves the way for th...

Iranian government-sponsored threat actors have been blamed for compromising a U.S. federal agency by taking advantage of the Log4Shell vulnerability in an unpatched VMware Horizon server. The details, which were shared by the U.S. Cybersecurity and Infrastructure Security Agency (CISA), come in response to incident response efforts undertaken by the authority from mid-June through mid-July 2022. "Cyber threat actors exploited the Log4Shell vulnerability in an unpatched VMware Horizon server, installed XMRig crypto mining software, moved laterally to the domain controller (DC), compromised credentials, and then implanted Ngrok reverse proxies on several hosts to maintain persistence," CISA  noted . LogShell, aka  CVE-2021-44228 , is a critical remote code execution flaw in the widely-used Apache Log4j Java-based logging library. It was addressed by the open source project maintainers in December 2021. The latest development  marks  the  continued   ab...

Threat actors with ties to the Democratic People's Republic of Korea (aka DPRK or North Korea) have been observed leveraging ClickFix-style lures to deliver a known malware called BeaverTail and InvisibleFerret. "The threat actor used ClickFix lures to target marketing and trader roles in cryptocurrency and retail sector organizations rather than targeting software development roles," GitLab Threat Intelligence researcher Oliver Smith said in a report published last week. First exposed by Palo Alto Networks in late 2023, BeaverTail and InvisibleFerret have been deployed by North Korean operatives as part of a long-running campaign dubbed Contagious Interview (aka Gwisin Gang), wherein the malware is distributed to software developers under the pretext of a job assessment. Assessed to be a subset of the umbrella group Lazarus , the cluster has been active since at least December 2022. Over the years, BeaverTail has also been propagated via bogus npm packages and f...

Even in well-secured environments, attackers are getting in—not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected. These attacks don't depend on zero-days. They work by staying unnoticed—slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious now blends in, thanks to modular techniques and automation that copy normal behavior. The real concern? Control isn't just being challenged—it's being quietly taken. This week's updates highlight how default settings, blurred trust boundaries, and exposed infrastructure are turning everyday systems into entry points. ⚡ Threat of the Week Critical SharePoint Zero-Day Actively Exploited (Patch Released Today) — Microsoft has released fixes to address two security flaws in SharePoint Server that have come under active exploitation in the wild to breach dozens of organizations across the world. Details of exploitation emer...

The threat actor known as Cloud Atlas has been observed using a previously undocumented malware called VBCloud as part of its cyber attack campaigns targeting "several dozen users" in 2024. "Victims get infected via phishing emails containing a malicious document that exploits a vulnerability in the formula editor (CVE-2018-0802) to download and execute malware code," Kaspersky researcher Oleg Kupreev said in an analysis published this week. More than 80% of the targets were located in Russia. A lesser number of victims have been reported from Belarus, Canada, Moldova, Israel, Kyrgyzstan, Turkey, and Vietnam. Also referred to as Clean Ursa, Inception, Oxygen, and Red October, Cloud Atlas is an unattributed threat activity cluster that has been active since 2014. In December 2022, the group was linked to cyber attacks aimed at Russia, Belarus, and Transnistria that deployed a PowerShell-based backdoor called PowerShower. Then exactly a year later, Russian cy...

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...

The notorious cryptojacking group tracked as  8220 Gang  has been spotted weaponizing a six-year-old security flaw in Oracle WebLogic servers to ensnare vulnerable instances into a botnet and distribute cryptocurrency mining malware. The flaw in question is  CVE-2017-3506  (CVSS score: 7.4), which, when successfully exploited, could allow an unauthenticated attacker to execute arbitrary commands remotely. "This allows attackers to gain unauthorized access to sensitive data or compromise the entire system," Trend Micro researcher Sunil Bharti  said  in a report published this week. 8220 Gang,  first documented  by Cisco Talos in late 2018, is so named for its original use of port 8220 for command-and-control (C2) network communications. "8220 Gang identifies targets via scanning for misconfigured or vulnerable hosts on the public internet," SentinelOne  noted  last year. "8220 Gang is known to make use of SSH brute force attacks pos...

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),...

The security landscape now moves at a pace no patch cycle can match. Attackers aren't waiting for quarterly updates or monthly fixes—they adapt within hours, blending fresh techniques with old, forgotten flaws to create new openings. A vulnerability closed yesterday can become the blueprint for tomorrow's breach. This week's recap explores the trends driving that constant churn: how threat actors reuse proven tactics in unexpected ways, how emerging technologies widen the attack surface, and what defenders can learn before the next pivot. Read on to see not just what happened, but what it means—so you can stay ahead instead of scrambling to catch up. ⚡ Threat of the Week Google Patches Actively Exploited Chrome 0-Day — Google released security updates for the Chrome web browser to address four vulnerabilities, including one that it said has been exploited in the wild. The zero-day vulnerability, CVE-2025-10585, has been described as a type confusion issue in the V8 JavaScript ...

Power doesn't just disappear in one big breach. It slips away in the small stuff—a patch that's missed, a setting that's wrong, a system no one is watching. Security usually doesn't fail all at once; it breaks slowly, then suddenly. Staying safe isn't about knowing everything—it's about acting fast and clear before problems pile up. Clarity keeps control. Hesitation creates risk. Here are this week's signals—each one pointing to where action matters most. ⚡ Threat of the Week Ghost Tap NFC-Based Mobile Fraud Takes Off — A new Android trojan called PhantomCard has become the latest malware to abuse near-field communication (NFC) to conduct relay attacks for facilitating fraudulent transactions in attacks targeting banking customers in Brazil. In these attacks, users who end up installing the malicious apps are instructed to place their credit/debit card on the back of the phone to begin the verification process, only for the card data to be sent to an attacker-controlled NFC relay...

The threat actor linked to Operation ForumTroll has been attributed to a fresh set of phishing attacks targeting individuals within Russia, according to Kaspersky. The Russian cybersecurity vendor said it detected the new activity in October 2025. The origins of the threat actor are presently unknown. "While the spring cyberattacks focused on organizations, the fall campaign honed in on specific individuals: scholars in the field of political science, international relations, and global economics, working at major Russian universities and research institutions," security researcher Georgy Kucherin said . Operation ForumTroll refers to a series of sophisticated phishing attacks exploiting a then-zero-day vulnerability in Google Chrome (CVE-2025-2783) to deliver the LeetAgent backdoor and a spyware implant known as Dante. The latest attack wave also commences with emails that claimed to be from eLibrary, a Russian scientific electronic library, with the messages sent f...

This past week has been packed with unsettling developments in the world of cybersecurity. From silent but serious attacks on popular business tools to unexpected flaws lurking in everyday devices, there's a lot that might have flown under your radar. Attackers are adapting old tricks, uncovering new ones, and targeting systems both large and small. Meanwhile, law enforcement has scored wins against some shady online marketplaces, and technology giants are racing to patch problems before they become a full-blown crisis. If you've been too busy to keep track, now is the perfect time to catch up on what you may have missed. ⚡ Threat of the Week Cleo Vulnerability Comes Under Active Exploitation — A critical vulnerability (CVE-2024-50623) in Cleo's file transfer software—Harmony, VLTrader, and LexiCom—has been actively exploited by cybercriminals , creating major security risks for organizations worldwide. The flaw enables attackers to execute code remotely without authorization...