cve
Safeguard articles tagged "cve" — guides, analysis, and best practices for software supply chain and application security.
184 articles
ProxyLogon (CVE-2021-26855) Explained: The Exchange SSRF That Opened a Pre-Auth Door
CVE-2021-26855, ProxyLogon, is a server-side request forgery in Microsoft Exchange that let unauthenticated attackers impersonate the server — the first link in a chain to full remote code execution.
PwnKit (CVE-2021-4034) Explained: Root From a 12-Year-Old Polkit Bug
CVE-2021-4034, aka PwnKit, is a memory-corruption flaw in polkit's pkexec that gives any local user reliable root on nearly every Linux distribution. Here is how it works and how to close it.
What Is a CVE? Understanding Vulnerability IDs
A CVE is a unique public ID given to a specific known security weakness, so everyone can talk about the same flaw without confusion. Here's how the system works.
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.
CWE Meaning: What Common Weakness Enumeration Is and Why It Matters
The CWE meaning is simpler than it looks: a shared catalog of software weakness types. Here is how it differs from CVE and how to actually use it.
What Does 'CVE: BYN' Mean? Decoding Vulnerability Identifiers
If you searched for 'cve: byn', you probably landed on a garbled query. Here is what a CVE identifier actually is, how to read one, and why 'BYN' is not part of it.
What Is the NVD (National Vulnerability Database)?
The NVD is the U.S. government's enrichment layer on top of the CVE List, adding CVSS scores, CWE classifications, and affected-configuration data. Here is how it works and where it falls short.
CVE-2026-45321: Anatomy of the TanStack npm and PyPI Supply Chain Worm
The Mini Shai-Hulud worm hit TanStack, Mistral AI, UiPath and 170+ npm and PyPI packages by hijacking a trusted release pipeline mid-run. Here is how the software supply chain attack actually worked, and what it changes.
Cost-Per-Verified-Finding: How Agentic AI Breaks Vulnerability Triage
Agentic AI can generate findings faster than any team can read them. The metric that survives that flood isn't cost-per-finding, it's cost-per-verified-finding. Here's why verification is now the bottleneck.
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.
CVE-2025-9086 in cURL: Patch Posture & SBOM Response
Heap out-of-bounds read in libcurl's cookie path comparison affects nearly every Linux distro. Defender SBOM playbook below.
nginx 1.22.1 Vulnerabilities: What Actually Affects You
Worried about nginx 1.22.1 vulnerabilities? Here is what genuinely affects this release, what does not, and how to decide whether you need to upgrade.
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