Vulnerability Management
In-depth guides and analysis on vulnerability management from the Safeguard engineering team.
100 articles
Text4Shell deep dive: how CVE-2022-42889 turned string formatting into RCE
CVSS 9.8. Apache Commons Text 1.5–1.9 ran attacker strings through a script interpolator by default — here's the root cause and the fix.
Best bug bounty and vulnerability disclosure platforms
A practical buyers guide to bug bounty platforms and vulnerability disclosure program software, comparing HackerOne, Bugcrowd, Intigriti, YesWeHack, and more.
CVE-2022-33980: Interpolation-Based RCE in Apache Commons Configuration
A CVSS 9.8 flaw in Apache Commons Configuration 2.4–2.7 let default interpolators run script-engine expressions from untrusted config strings.
Vulnerability fatigue and the case for risk-based prioritization
48,185 CVEs were published in 2025 alone. Most teams can't triage that volume — reachability and exploit maturity data show which ones actually matter.
Reachability analysis for vulnerability triage
Only 10-30% of SCA findings are ever actually invoked by your code. Reachability analysis finds which ones, cutting patch backlogs without hiding real risk.
A prioritization framework for triaging security alerts at scale
Only 2.6% of CVEs tracked in 2019 saw real-world exploitation, per Kenna Security/Cyentia — yet most teams still triage by CVSS alone. Here's a better framework.
SBOM-based blast radius analysis for vulnerable dependencies
An SBOM tells you what's inside one artifact. It takes a dependency graph across every service to know what breaks first when a library gets a CVE.
CVE-2025-29927: inside the Next.js middleware auth bypass
A single spoofed header let attackers skip Next.js middleware entirely — CVSS 9.1, four major versions affected, exploited in the wild within days.
The libwebp heap overflow that patched half the internet: CVE-2023-4863
One heap buffer overflow in a 15-year-old image codec forced Chrome, Firefox, Edge, Electron apps, and entire Linux distros to ship emergency patches within days.
CWE vs. CVE vs. CVSS: The Vocabulary Every AppSec Team Gets Wrong
One CWE weakness class can spawn thousands of CVEs, and a single CVE can now carry two different CVSS scores at once — most teams still use the terms interchangeably.
Using EPSS scores for vulnerability remediation prioritization
EPSS predicts exploitation probability for every CVE on a 0-1 scale, updated daily. Paired with CVSS, it turns a 1,000-ticket backlog into a short, defensible list.
How task-scheduler RCEs become cryptomining botnets
Two chained Apache Airflow CVEs and a Rundeck YAML deserialization bug show how scheduler tools turn one flaw into unauthenticated RCE and persistent mining.
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