Medusa
A ransomware group active since 2021 that grew into an affiliate operation from 2023. It keeps adopting flaws in remote-support and file transfer products and remained active in 2026.
- Alert level
- 2/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 4
- Personal data leaked (disclosed)
- None confirmed
Exploited vulnerabilities and targeted products
CVE-2024-1709 CVE-2023-48788 CVE-2025-10035 CVE-2026-1731
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Exploiting internet-facing devices
Like finding a broken lock on the company's front gate (VPN or firewall) and walking in.
Entry
Emails pretending to be someone you know
Like a letter from a 'colleague' with an envelope that springs a trap when opened.
Inside
Staying in with remote-support tools
Like cutting yourself a copy of the repair company's key so you can come and go anytime.
Goal
Double extortion: encrypt and leak
Like locking your safe and also taking copies of the papers inside, threatening to publish them unless you pay.
Sources
Attributions are quoted as assessed by governments and security vendors. VulnPulse does not make attributions itself.
Leak counts only add up figures disclosed by the affected companies or authorities, never the attackers' own claims. We do not list victim names or link to leak sites.
The alert level is calculated automatically from reports and advisories in the last 90 days, known exploited vulnerabilities, and whether the group has targeted Japan.
Updated 2026-10-23 · daily