# UNK_DoubleCheck

> As of 2026-10-10, UNK_DoubleCheck is a threat actor tracked by Threadlinqs Intelligence across 1 threat spanning vulnerability.

- **Tracked threats:** 1
- **Categories:** VULNERABILITY
- **As of:** 2026-10-10

## Tracked threats

- [BlueMoon Exploit Kit Chains Chrome V8 Flaws CVE-2026-85046 and CVE-2026-87491 with Windows Kernel LPE CVE-2026-85880](https://intel.threadlinqs.com/threat/TL-2026-3185) — CRITICAL

## Related CVEs

3 CVEs referenced by tracked UNK_DoubleCheck activity.

- [CVE-2026-87491](https://intel.threadlinqs.com/cve/CVE-2026-87491)
- [CVE-2026-85880](https://intel.threadlinqs.com/cve/CVE-2026-85880)
- [CVE-2026-85046](https://intel.threadlinqs.com/cve/CVE-2026-85046)

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/UNK_DoubleCheck