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Citrix has released patches for multiple critical security flaws impacting NetScaler ADC, Citrix NetScaler Gateway, and NetScaler Console that could lead to denial-of-service (DoS) or an authentication bypass. The critical vulnerabilities that impact NetScaler ADC and NetScaler Gateway are listed below - CVE-2026-120868 (CVSS score: 9.3) - A memory overflow vulnerability in Packet Processing can lead to unpredictable or erroneous behavior or DoS. (All NetScaler ADC and NetScaler Gateway deployments) CVE-2026-107407 (CVSS score: 9.3) - A memory overflow vulnerability in SMPP traffic can lead to unpredictable or erroneous behavior or DoS. (NetScaler ADC configured with a Load Balancing or Content Switching virtual server of type SMPP) CVE-2026-107408 (CVSS score: 9.3) - A memory corruption vulnerability in DNS / DNS-over-HTTPS (DoH) can lead to unpredictable or erroneous behavior or DoS. (NetScaler ADC configured for DNS load balancing and recursive DNS resolution) C...

Cybersecurity researchers have found that lookalike domains masquerading as artificial intelligence (AI) tools are being used to serve ClickFix -style lures, browser-hijacking malware, and a set of extensions that hijack user searches. This delivery pattern has been codenamed TypoPrompting by Island. "AI-app lookalikes that turn an attempt to reach a familiar tool into a prompt to verify, install or run something else," the cybersecurity company said in a report shared with The Hacker News. In all, the campaign spans 186 bogus domains spanning 27 AI brands, including Anthropic Claude, OpenAI ChatGPT, Google Gemini and Gemini Notebook (formerly NotebookLM), Microsoft Copilot, SpaceXAI Grok, DeepSeek, Mistral, Perplexity, Midjourney, ElevenLabs, Lovable, and Cursor. While one category leads to a ClickFix lure that serves a PowerShell command via a fake Cloudflare verification page, the second route takes unsuspecting users to "Security Check" pages that del...

The ongoing campaign targeting ConnectWise ScreenConnect deployments involves the exploitation of a now-patched critical security flaw in the remote access software, and not a new vulnerability, it has emerged. Blackpoint Cyber's Adversary Pursuit Group (APG), which shared the details with The Hacker News, said the recovered attacker toolkit exploits CVE-2026-84869 (CVSS score: 9.9), an improper privilege management and missing authorization vulnerability that could allow an attacker to file transfer and execute through an active remote session without authorization or host confirmation. The cybersecurity company confirmed that testing against a fully patched ScreenConnect client successfully prevents execution of the exploit's payload. "Our testing confirmed that the exploit targets CVE-2026-84869 and that the existing patch successfully blocks it," APG researchers Sam Decker and Nevan Beal said. "That's an important finding for security teams....

Google Cloud VMs on AMD Turin chips need a guest OS patch and a stop-and-start to protect against three CPU side-channel flaws, Google said this week. The company has already applied mitigations against attacks between VMs, and between VMs and the host. Inside a VM, the flaws may let an attacker with code on the same processor core infer data from other processes or the kernel. The affected machine series are C4D, N4D, H4D, Z4D,, and G4, including bare-metal instances of C4D and Z4D. Turin is the code name for fifth-generation AMD EPYC processors. All three flaws are Transient Scheduler Attacks (TSA). Two of them, TSA-SQ (CVE-2024-36350) and TSA-L1 (CVE-2024-36357), were first disclosed on July 8, 2025, for earlier EPYC processors. AMD now says its Zen 5 processors, which include Turin, are "impacted differently from previously characterized AMD processors." The third flaw, CVE-2026-0004, is new. It may let an attacker who can run code on a system infer data in the p...

N-able on Thursday said it's investigating a new public disclosure containing claims of additional vulnerabilities in on-premise versions of N-central running version 2026.4.1 HF2. "Based on our initial review, the server issue described depends on a non-default configuration in which the Legacy API is turned on and exposed to the public internet," N-able said in a new advisory. "Legacy API is turned off by default in the product and is not recommended." The company is urging customers to disable Legacy API immediately, if not already. It also noted that hosted environments are not affected by this issue. The incident impacts the following services - N-central On-premise (Americas) N-central On-premise (APAC) N-central On-premise (Europe) The development comes days after N-able released 2026.4.1.26 to address a number of security flaws disclosed by independent security researcher Sean Bales earlier this week. The vulnerabilities are collec...

Since mid-August 2026, a phishing operation has been stealing live Google sessions from corporate users. Every check defenders normally lean on to judge a link came back clean, and the operator designed it that way on purpose. The Threat Research team at Material Security spotted the campaign and has since taken down hundreds of attacker domains in an effort the team calls Operation CloudFire. Here’s what the researchers found. The lure: Google Calendar invites The messages show up as Google Calendar invites. Some arrive by BCC, and many come from an organization the recipient has already traded email with. The pretexts are deliberately boring: voicemail notifications, RFP and RFI requests, court summonses, and missed payment notices. Nothing about them stands out in a busy inbox. Most of the links point to Google itself. The usual pattern runs through Google’s own /url redirector, with the real destination tucked into a query parameter. Other waves used share.google and Driv...