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Vulnerabilities

Timeline illustration: scanners probe servers early, an alert fires, and the official vulnerability record arrives later
Proactive Cybersecurity

Pre-NVD: what attackers probe before the CVE exists

Attackers probe products weeks before a CVE reaches the NVD. What pre-NVD detection is, what it catches, and how to block scanners before a patch exists.

Patch order example: the BeyondTrust remote support RCE ranks first with a CrowdSec Score of 9, ahead of Log4Shell, which has a CVSS of 10 but a CrowdSec Score of 3.
Proactive Cybersecurity

How to prioritise CVEs by real exploitation, beyond CVSS, EPSS and KEV

CVSS, EPSS and KEV estimate risk. To prioritise patching, check if a CVE is exploited now, how targeted it is and whether it’s growing. A practical method.

CrowdSec WAF virtual patching: a shield blocks PHP2Shell exploit attempts while visitors reach web applications behind NGINX, OpenResty, HAProxy and Traefik
Tutorial

PHP2Shell Virtual Patching: Keep Your PHP Websites Online While You Upgrade

PHP2Shell virtual patching: free CrowdSec WAF rules block known exploits for both CVEs, so your PHP sites stay online while you upgrade. How to set it up.

Bar chart: of 332 exploited CVEs tracked from Q4 2024 to Q2 2026, 36% were attacked within a day of publication, 27% within 2 to 7 days and 22% within 8 to 30 days
Proactive Cybersecurity

What 300,000 Security Engines saw: 8 lessons on exploitation from SANS 2026

36% of exploited CVEs were attacked within a day of publication. What 300,000 Security Engines saw at SANS 2026: borrowed cloud IPs, early zero-days, old CVEs.

vulnerability exploits threats risk
Proactive Cybersecurity

Vulnerability 101: Understanding Security Weaknesses

Learn the difference between vulnerabilities, threats, and risks, and how understanding their lifecycle helps prevent security incidents.

Vulnerability Myths
Proactive Cybersecurity

5 Common Vulnerability Myths That Put Your Security At Risk

Discover 5 common cybersecurity myths that increase risk, from “we’re too small” to CVSS blind spots. Learn what really reduces exposure.

production telemetry vs honeypots
Proactive Cybersecurity

Honeypots vs Production Telemetry: What CISOs Should Trust for Threat Intelligence

Threat intelligence isn’t equal. Learn why real-world production telemetry reveals attacker intent, and why CISOs trust it over honeypot-based intel.

crowdsec vulntracking report march 2025
Vulnerabilities

CrowdSec VulnTracking Report: March 2025

Discover key insights on emerging CVEs and exploitation attempts in this month’s CrowdSec VulnTracking Report.

how can an attacker execute malware through script
Vulnerabilities

How Can an Attacker Execute Malware through a Script

Learn how script-based attacks work, why it is difficult for traditional antivirus software to detect them, and how to properly detect and mitigate this threat.

Detect and Block Exploitation Attempts of the CVE-2024-4577 PHP-CGI Argument Injection Vulnerability
Vulnerabilities

Detect and Block Exploitation Attempts of the CVE-2024-4577 PHP-CGI Argument Injection Vulnerability

Explore the latest CVE-2024-4577 PHP-CGI Argument Injection vulnerability and learn how to detect and block malicious IPs attempting to exploit it.

Investigating Exploit Attacks of the D-Link NAS CVE-2024-3273 Vulnerability
Vulnerabilities

Investigating Exploit Attacks of the D-Link NAS CVE-2024-3273 Vulnerability

The CVE-2024-3273 exploit for D-Link NAS devices is being used aggressively by botnets hijacking IoT devices. Learn more about this exploit and how to block it.

New Surge in VMware Workspace ONE Vulnerability CVE-2022-22954 Exploit Attempts Detected
Vulnerabilities

New Surge in VMware Workspace ONE Vulnerability CVE-2022-22954 Exploit Attempts Detected

A recent surge in CVE-2022-22954 exploitation attempts detected by the CrowdSec Network points to a potential new botnet using common vulnerabilities.

detect looney tunables exploitation attempts
Vulnerabilities

Detect Exploitation Attempts of the Looney Tunables Vulnerability in Your System

Brute force attacks are the most prevalent way to exploit the Looney Tunables vulnerability in your system. Here’s how to get notified of such attempts.

detecting and stopping ransomware with crowdsec
Tutorial

Detecting and Stopping Ransomware with CrowdSec

Detects and prevents ransomware spread with CrowdSec. Learn how to configure CrowdSec to block lateral moves on Windows machines effectively.