Tenable Research

php2shell raised fears of mass exploitation. A week of testing by our research team found that working exploits had to be fitted to each target’s exact PHP setup. Systems that share one build, such as network appliances, are the exception: one tuned exploit can reach every device that runs it. Key takeaways The five…

AI is widening the attack surface of the critical infrastructure facilities and services that state, local, and education (SLED) organizations run. In the final post of our Cybersecurity Awareness Month series, we explain how a whole-of-state security approach can help SLED agencies protect their critical…

Researchers have demonstrated remote code execution through CVE-2026-111497, an out-of-bounds write in Google's Brotli decoder library, and public proofs-of-concept (PoCs) are available. Software that uses the decoder includes Node.js, .NET, Bun, Envoy Proxy, Istio, Python HTTP clients and PHP for Windows. Change log…

Learn how to use Tenable solutions to find vulnerable PHP versions, prioritize remediation, and patch the critical PHP2Shell vulnerabilities (CVE-2026-109618 and CVE-2026-109619) faster. Key takeaways The PHP2Shell vulnerabilities ( CVE-2026-109618 and CVE-2026-109619 ) put security teams in a race against attackers.…

Two critical PHP vulnerabilities sent criminal forum operators scrambling to protect their own infrastructure, revealing that threat actors face the same exposure management challenges as the organizations they target. Key takeaways The adversary economy operates on the same fundamental principles as the legitimate…

Shadow AI used to be confined to a few simple scenarios, such as AI chatbots and AI browser extensions. Today, it spans a broad spectrum of complex vectors, making it harder to detect and control. In the latest installment of our Cybersecurity Awareness Month blog series, learn how employee security training, AI usage…

AI security tools that can only detect threats in English offer limited protection. Here’s how Tenable trained our threat detectors to process nine additional languages and understand thousands more, without the need for a translation model, which increases costs and slows down processing. Key takeaways Tenable One AI…

Two critical PHP vulnerabilities could lead to unauthenticated remote code execution. Patches are available for supported PHP 8.x branches, and exploitation attempts began before public disclosure. Change log Update October 28: Clarified Amazon Threat Intelligence's wording to say php2shell is seeing broad…

Oracle addresses 1209 CVEs in its final quarterly update of 2026 with 1295 patches, including 112 critical updates. Key Takeaways The October 2026 Critical Patch Update (CPU) contains fixes for 1209 unique CVEs in 1295 security updates 112 issues (8.6% of all patches) were assigned a critical severity rating Oracle…

Discover how to secure AI agents in your cloud environment with Tenable One Cloud Exposure. We explore Microsoft Entra Agent ID and provide essential best practices for robust agentic AI identity security. Key takeaways Understand your current maturity level and then build an appropriate action plan to secure your…

69 Critical 1337 Important 0 Moderate 1 Low Microsoft addresses 1407 CVEs in the tenth Patch Tuesday of 2026, marking the second consecutive month to reset the bar as the largest Patch Tuesday release. This month’s updates include patches for two zero days, including one that was exploited in the wild. Microsoft…