The Cybersecurity and Infrastructure Security Agency (CISA) has ordered U.S. government agencies over the weekend to secure their systems against attacks exploiting two critical Citrix NetScaler vulnerabilities. […]
OpenAI is preparing “o,” an always-on ChatGPT assistant that could handle email
OpenAI is testing a new always-on assistant called “o”, and references to the unannounced feature briefly showed up on the company’s website. […]
Citrix admins warned to shut down NetScalers over 2 exploited zero-days
Two unpatched Citrix NetScaler zero-day vulnerabilities are reportedly being exploited in attacks, with cybersecurity agencies, security researchers, and IT providers privately warning organizations about the flaws ahead of patches expected next week. […]
Cloudflare fixes Containers cross-tenant flaw exposing customer data
Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers’ containers on the same physical host. […]
Anthropic turns Claude into an AI marketplace with 2,000+ plugins and connectors
Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more. […]
Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks
CISA added CVE-2026-65660 to its KEV catalog, giving federal agencies a patching deadline of September 28.
The post Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks appeared first on SecurityWeek.
Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation
Two new unpatched zero-day vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway appliances that allow remote code execution are being actively exploited in the wild, security firm watchTowr said on September 26.
Citrix has not confirmed the flaws or published a fix. Some administrators say they have taken appliances offline rather than wait for one to be available.
NetScaler ADC and
ShinyHunters uses WAF bypass trick in Oracle PeopleSoft attacks
The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume widespread exploitation of a flaw on vulnerable servers. […]
Lunex Stealer Abuses AMD Driver to Disable Security Monitoring and Steal Browser Credentials
The Psychedelic Stealer malware distributed via compromised Ukrainian websites using ClickFix-style Cloudflare verification checks is part of a wider malware-as-a-service (MaaS) platform called Lunex.
The new findings come from Ontinue, which described the activity as a four-stage attack chain aimed at targeting Ukrainian-speaking users.
“The attack chain begins with a fake CAPTCHA page and
China and US Agree to Establish AI Safety Channel and Continue Trade and Military Talks
The US and China agreed to set up a communication mechanism for artificial intelligence-related incidents.
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