UNC3886
An espionage group that hides deep inside firewalls, routers and virtualization systems, places where security tools rarely look. It targets defense, technology and telecoms.
- Alert level
- 2/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 2
- Personal data leaked (disclosed)
- None confirmed
Attribution
- Assessed as a China-nexus espionage group — Mandiant (Google)
Exploited vulnerabilities and targeted products
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.
Inside
Living inside network equipment
Like hiding inside the security camera itself, so the watchman's own eyes are compromised.
Goal
Quietly stealing information
Like a spy who stays for months, copying files from the cabinet a little at a time.
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