vpn
Safeguard articles tagged "vpn" — guides, analysis, and best practices for software supply chain and application security.
8 articles
When the Perimeter Device Is the Vulnerability: Juniper and SonicWall Confirmed Exploited
A decade-old Juniper ScreenOS backdoor-style auth bypass and a current SonicWall SMA1000 authorization gap both let attackers seize control of the appliance meant to enforce access control.
Ivanti Connect Secure CVE-2024-21887 Explained: Command Injection in a Two-Bug Chain
CVE-2024-21887 is a command injection in Ivanti Connect Secure that, chained with the auth bypass CVE-2023-46805, gave attackers unauthenticated RCE. Here is the timeline, root cause, and patched versions.
CVE-2025-20333 in Cisco ASA: Patch Posture & SBOM Response
Cisco Secure Firewall ASA/FTD buffer overflow scored CVSS 9.9 and was added to CISA KEV the day Cisco published the advisory. Here is the defender playbook.
Edge Appliances Are the Soft Underbelly: VPN Zero-Days as Initial Access in 2026
Check Point's CVE-2026-50751 and Cisco's seventh SD-WAN zero-day of the year are not isolated bugs — they are the same story. Here is why VPN and edge appliances keep becoming the front door for ransomware, and how to monitor and segment them.
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.
Palo Alto PAN-OS CVE-2026-0265: CAS Signature-Verification Auth Bypass (May 2026)
Palo Alto disclosed CVE-2026-0265 on May 13, 2026, a cryptographic-signature-verification flaw in Cloud Authentication Service that bypasses PAN-OS authentication. Researchers claim live GlobalProtect portal bypasses. Full analysis.
Citrix Bleed 2 Implications: What CVE-2024-6235 Means for NetScaler Operators
CVE-2024-6235 was the followup to the original Citrix Bleed and exposed sensitive data from NetScaler ADC and Gateway appliances. The technical details and what changes.
What is a VPN
A plain-English breakdown of what a VPN is, how it encrypts traffic, and why VPN gateways have become one of the most exploited attack surfaces in enterprise networks.
Self-healing security runs on Safeguard.
Your first fix PR is minutes away.
No sales call required, even your agent can complete the purchase over MCP.