The Hacker News | #1 Trusted Source for Cybersecurity News — Index Page

Palo Alto Networks has released security updates for a high-severity security flaw impacting GlobalProtect Gateway and Portal, for which it said there exists a proof-of-concept (PoC) exploit. The vulnerability, tracked as CVE-2026-0227 (CVSS score: 7.7), has been described as a denial-of-service (DoS) condition impacting GlobalProtect PAN-OS software arising as a result of an improper check for exceptional conditions ( CWE-754 ) "A vulnerability in Palo Alto Networks PAN-OS software enables an unauthenticated attacker to cause a denial-of-service (DoS) to the firewall," the company said in an advisory released Wednesday. "Repeated attempts to trigger this issue result in the firewall entering into maintenance mode." The issue, discovered and reported by an unnamed external researcher, affects the following versions - PAN-OS 12.1 < 12.1.3-h3, < 12.1.4 PAN-OS 11.2 < 11.2.4-h15, < 11.2.7-h8, < 11.2.10-h2 PAN-OS 11.1 < 11.1.4-h27, < 11.1.6...

The Black Lotus Labs team at Lumen Technologies said it null-routed traffic to more than 550 command-and-control (C2) nodes associated with the AISURU/Kimwolf botnet since early October 2025. AISURU and its Android counterpart, Kimwolf, have emerged as some of the biggest botnets in recent times, capable of directing enslaved devices to participate in distributed denial-of-service (DDoS) attacks and relay malicious traffic for residential proxy services . Details about Kimwolf emerged last month when QiAnXin XLab published an exhaustive analysis of the malware, which turns compromised devices – mostly unsanctioned Android TV streaming devices – into a residential proxy by delivering a software development kit (SDK) called ByteConnect either directly or through sketchy apps that come pre-installed on them. The net result is that the botnet has expanded to infect more than 2 million Android devices with an exposed Android Debug Bridge (ADB) service by tunneling through residentia...

Not long ago, AI agents were harmless. They wrote snippets of code. They answered questions. They helped individuals move a little faster. Then organizations got ambitious. Instead of personal copilots, companies started deploying shared organizational AI agents - agents embedded into HR, IT, engineering, customer support, and operations. Agents that don't just suggest, but act. Agents that touch real systems, change real configurations, and move real data: An HR agent who provisions and deprovisions access across IAM, SaaS apps, VPNs, and cloud platforms. A change management agent that approves requests, updates production configs, logs actions in ServiceNow, and updates Confluence. A support agent that pulls customer data from CRM, checks billing status, triggers backend fixes, and updates tickets automatically. These agents warrant deliberate control and oversight. They're now part of our operational infrastructure. And to make them useful, we made them powerful ...

Security experts have disclosed details of an active malware campaign that's exploiting a DLL side-loading vulnerability in a legitimate binary associated with the open-source c-ares library to bypass security controls and deliver a wide range of commodity trojans and stealers. "Attackers achieve evasion by pairing a malicious libcares-2.dll with any signed version of the legitimate ahost.exe (which they often rename) to execute their code," Trellix said in a report shared with The Hacker News. "This DLL side-loading technique allows the malware to bypass traditional signature-based security defenses." The campaign has been observed distributing a wide assortment of malware, such as Agent Tesla , CryptBot , Formbook , Lumma Stealer , Vidar Stealer , Remcos RAT , Quasar RAT , DCRat , and XWorm . Targets of the malicious activity include employees in finance, procurement, supply chain, and administration roles within commercial and industrial sectors like ...

Fortinet has released updates to fix a critical security flaw impacting FortiSIEM that could allow an unauthenticated attacker to achieve code execution on susceptible instances. The operating system (OS) injection vulnerability, tracked as CVE-2025-64155 , is rated 9.4 out of 10.0 on the CVSS scoring system. "An improper neutralization of special elements used in an OS command ('OS command injection') vulnerability [CWE-78] in FortiSIEM may allow an unauthenticated attacker to execute unauthorized code or commands via crafted TCP requests," the company said in a Tuesday bulletin. Fortinet said the vulnerability affects only Super and Worker nodes, and that it has been addressed in the following versions - FortiSIEM 6.7.0 through 6.7.10 (Migrate to a fixed release) FortiSIEM 7.0.0 through 7.0.4 (Migrate to a fixed release) FortiSIEM 7.1.0 through 7.1.8 (Upgrade to 7.1.9 or above) FortiSIEM 7.2.0 through 7.2.6 (Upgrade to 7.2.7 or above) FortiSIEM 7.3.0 thr...

Research analyzing 4,700 leading websites reveals that 64% of third-party applications now access sensitive data without business justification, up from 51% in 2024.  Government sector malicious activity spiked from 2% to 12.9%, while 1 in 7 Education sites show active compromise. Specific offenders: Google Tag Manager (8% of violations), Shopify (5%), Facebook Pixel (4%). Download the complete 43-page analysis → TL;DR A critical disconnect emerges in the 2026 research: While 81% of security leaders call web attacks a top priority, only 39% have deployed solutions to stop the bleeding. Last year's research found 51% unjustified access. This year it's 64% — and accelerating into public infrastructure. What is Web Exposure? Gartner coined 'Web Exposure Management' to describe security risks from third-party applications: analytics, marketing pixels, CDNs, and payment tools. Each connection expands your attack surface; a single vendor compromise can trigger a massive ...

Microsoft on Tuesday rolled out its first security update for 2026 , addressing 114 security flaws, including one vulnerability that it said has been actively exploited in the wild. Of the 114 flaws, eight are rated Critical, and 106 are rated Important in severity. As many as 58 vulnerabilities have been classified as privilege escalation, followed by 22 information disclosure, 21 remote code execution, and five spoofing flaws. According to data collected by Fortra, the update marks the third-largest January Patch Tuesday after January 2025 and January 2022. These patches are in addition to two security flaws that Microsoft has addressed in its Edge browser since the release of the December 2025 Patch Tuesday update, including a spoofing flaw in its Android app ( CVE-2025-65046 , 3.1) and a case of insufficient policy enforcement in Chromium's WebView tag ( CVE-2026-0628 , CVSS score: 8.8). The vulnerability that has come under in-the-wild exploitation is CVE-2026-20805 (CV...

Node.js has released updates to fix what it described as a critical security issue impacting "virtually every production Node.js app" that, if successfully exploited, could trigger a denial-of-service (DoS) condition. "Node.js/V8 makes a best-effort attempt to recover from stack space exhaustion with a catchable error, which frameworks have come to rely on for service availability," Node.js's Matteo Collina and Joyee Cheung said in a Tuesday bulletin. "A bug that only reproduces when async_hooks are used would break this attempt, causing Node.js to exit with 7 directly without throwing a catchable error when recursions in user code exhaust the stack space. This makes applications whose recursion depth is controlled by unsanitized input vulnerable to denial-of-service attacks." At its core, the shortcoming stems from the fact that Node.js exits with code 7 (denoting an Internal Exception Handler Run-Time Failure ) instead of gracefully handling the...

The Computer Emergency Response Team of Ukraine (CERT-UA) has disclosed details of new cyber attacks targeting its defense forces with malware known as PLUGGYAPE between October and December 2025. The activity has been attributed with medium confidence to a Russian hacking group tracked as Void Blizzard (aka Laundry Bear or UAC-0190). The threat actor is believed to be active since at least April 2024. Attack chains distributing the malware leverage instant messaging Signal and WhatsApp as vectors, with the threat actors masquerading as charity organizations to convince targets into clicking on a seemingly-harmless link ("harthulp-ua[.]com" or "solidarity-help[.]org") impersonating the foundation and download a password-protected archive.

Cybersecurity researchers have discovered a major web skimming campaign that has been active since January 2022, targeting several major payment networks like American Express, Diners Club, Discover, JCB Co., Ltd., Mastercard, and UnionPay. "Enterprise organizations that are clients of these payment providers are the most likely to be impacted," Silent Push said in a report published today. Digital skimming attacks refer to a category of client-side attacks in which bad actors compromise legitimate e-commerce sites and payment portals to inject malicious JavaScript code that's capable of stealthily harvesting credit card information and other personal information when unsuspecting users attempt to make a payment on checkout pages. These attacks are classified under an umbrella term called Magecart , which initially referred to a coalition of cybercriminal groups that targeted e-commerce sites using the Magento software, before diversifying to other products and platf...