MDSec — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
March 18, 2026
Last Seen
March 18, 2026

MDSec is an organization tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.

MDSec is a organization tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed March 18, 2026; most recent activity March 18, 2026.

Related Threat Clusters

  • RegPwn: Critical Windows Registry Flaw Grants SYSTEM Access

    Researchers at MDSec have disclosed a critical Elevation of Privilege vulnerability in Microsoft Windows, identified as 'RegPwn' and tracked as CVE-2026-24291. This vulnerability allows low-privileged users to gain full…

    2 articles · Updated March 18, 2026

Recent Intelligence Reports

  • Researchers Disclose ‘RegPwn,’ a Windows Registry Weakness Allowing SYSTEM Access — Gbhackers · March 18, 2026

Frequently asked questions

What is MDSec?

MDSec is an organization tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.

Is MDSec still active?

The most recent intelligence report mentioning MDSec on ThreatCluster is dated March 18, 2026.

What is MDSec associated with?

Across ThreatCluster reporting, MDSec most frequently co-occurs with Zero-day Exploit, CVE-2026-24291, Windows, RegPwn.

What are the latest developments involving MDSec?

The most significant recent cluster is “RegPwn: Critical Windows Registry Flaw Grants SYSTEM Access” (2 articles · Updated March 18, 2026). MDSec appears across 1 threat cluster in total, listed above with sources.

How much reporting does ThreatCluster have on MDSec?

MDSec appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown