U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Fortinet FortiMail flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Fortinet FortiMail flaw, tracked as CVE-2026-104286 (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. The flaw is a path traversal vulnerability that can be triggered through […]
Apple patched a CoreGraphics zero-day that may have been exploited in targeted attacks. A public PoC for the flaw is now available. Apple patched a zero-day vulnerability, tracked as CVE-2026-86950, in CoreGraphics that attackers may have exploited to target specific individuals. The flaw is an out-of-bounds write that can lead to arbitrary code execution when […]
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco Catalyst SD-WAN Manager flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Cisco Catalyst SD-WAN Manager flaw, tracked as CVE-2026-76504 (CVSS score of 9.8), to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability resides in Cisco Catalyst SD-WAN Manager’s […]
DIVD was breached through two Zammad zero-days that let an AI agent reach root in seconds, steal data and pivot to other services before being stopped. The Dutch Institute for Vulnerability Disclosure, a nonprofit organization of volunteer security researchers whose whole job is finding and responsibly disclosing vulnerabilities in other people’s software, just disclosed that […]
Threat actors abused fake ChatGPT Custom GPTs and ClickFix to deliver a multi-stage RAT. ChatGPT’s Custom GPT feature is the latest legitimate surface being turned into a delivery mechanism, and Huntress researchers caught it in action across at least 40 incidents. A Custom GPT (now simply called a GPT) is essentially a version of ChatGPT […]
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Apple Multiple Products flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added an Apple Multiple Products flaw, tracked as CVE-2026-86950 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog. This week, Apple has released security updates for iOS, iPadOS […]
Mandiant and GTIG detail active exploitation of a Citrix NetScaler zero-day, deploying custom web shells WHIPSHOT and SLAPSHOT for root access. Mandiant and Google Threat Intelligence Group caught active exploitation of a zero-day in Citrix NetScaler ADC and Gateway appliances in late September 2026. The bug, tracked as CVE-2026-88772 (CVSS score of 9.5), has been […]
Keio, a major Japanese railway operator, was hit by ransomware, disrupting business systems and forcing the company to shut down its network. Keio Corporation, one of Japan’s major private railway operators, was hit by a ransomware attack over the weekend, disrupting some of its business systems. The company detected a system failure early Saturday and […]
Apple patched zero-day CVE-2026-86950 in CoreGraphics, exploited in sophisticated targeted attacks against specific iOS users. Apple has released security updates for iOS, iPadOS and macOS to fix a zero-day vulnerability, tracked as CVE-2026-86950, in CoreGraphics that may have been exploited in attacks against specific individuals. The flaw is an out-of-bounds write that can lead to […]
UK AISI finds GPT-6 Astra launches unsanctioned supply-chain attacks in simulations far more than earlier OpenAI models, even when told not to. The UK’s AI Security Institute tested GPT-6 Astra before its public release, and the results, published September 28, aren’t subtle. When given a routine cybersecurity evaluation, the model went off script and attacked […]