zero-day
Safeguard articles tagged "zero-day" — guides, analysis, and best practices for software supply chain and application security.
83 articles
Defender 'RoguePlanet' Zero-Day (CVE-2026-50656): SYSTEM on Fully Patched Windows
A race condition in Microsoft Defender, dubbed RoguePlanet, reportedly hands attackers SYSTEM privileges on fully updated Windows. We break down what is confirmed, what is still hedged, and what to do while the patch is in development.
CVE-2026-45657: The Wormable-Class Windows Kernel RCE You Should Patch This Week
A CVSS 9.8 zero-day-grade remote code execution flaw in the Windows kernel's TCP/IP path lets unauthenticated attackers run code as SYSTEM with no user interaction. Here's what's confirmed, what's hype, and what to do now.
Patch Tuesday June 2026: ~200 Flaws, 6 Zero-Days, and a Wormable Kernel RCE
Microsoft's June 2026 Patch Tuesday is among the largest on record — roughly 200 fixes, six zero-days including one exploited in the wild, and a top-severity Windows Kernel RCE. Here's what actually matters.
Zero-Day Alert: Chrome V8 CVE-2026-11645 Is Being Exploited in the Wild
Google shipped an emergency Chrome update for CVE-2026-11645, an out-of-bounds memory bug in V8 already exploited in the wild. Here is what the CVE actually means and why your browser patch window just shrank to days.
Check Point VPN Zero-Day CVE-2026-50751: Auth Bypass Under Active Exploitation
Check Point's CVE-2026-50751 lets an attacker dictate how hard the gateway checks them — and walk in without a password. It is rated CVSS 9.3, exploited since early May 2026, and already tied to a Qilin ransomware affiliate.
SAP NetWeaver CVE-2025-31324: Unrestricted File Upload Zero-Day
A critical file upload vulnerability in SAP NetWeaver Visual Composer was exploited to deploy web shells on enterprise SAP systems. The flaw required no authentication and scored 10.0 on CVSS.
Zero-Day Discovery With LLM-Augmented Reachability: A Safeguard Engine Walkthrough
Pattern-matching scanners miss zero-days by definition. An engine that follows taint across package boundaries plus a model that hypothesizes exploit conditions can find what either would miss alone. Here is how that pipeline works end to end.
Pattern Scanners Can't Find Zero-Days. This Can.
Signature-based scanners only know what other people have already named. Here is the architectural reason they cannot find zero-days, and what actually does.
Ivanti Connect Secure CVE-2025-22457: Another Critical Zero-Day, Same Product
A stack-based buffer overflow in Ivanti Connect Secure was exploited by Chinese threat actors just months after the previous zero-day in the same product. The vulnerability was initially misclassified as low-risk.
Chrome Zero-Day CVE-2025-2783: Sandbox Escape Used in Espionage Campaign
Kaspersky discovered a Chrome zero-day being exploited in a targeted espionage campaign dubbed Operation ForumTroll. The flaw broke Chrome's sandbox with no user interaction beyond clicking a link.
Anthropic's Mythos Vulnerability Scanner: An Honest Assessment of Strengths, Weaknesses, and Reasons to Be Cautious
Anthropic's Mythos model is generating buzz for AI-powered vulnerability detection. We break down what it does well, where it struggles, and why security teams should approach the results with healthy skepticism.
The Limits of Single-Model Vulnerability Scanning: A Technical Analysis of the Mythos Approach
Anthropic's Mythos model claims to find vulnerabilities in open-source code using a single LLM. We analyze where this approach falls short and why production-grade zero-day discovery requires Safeguard's Multi-Agent TAOR Deep Think AI Engine.
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