# CVE-2025-42611 > As of 2026-11-04, CVE-2025-42611 is a vulnerability. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-42611, most recently “CVE-2025-42611: Authentication bypass in multiple MikroTik RouterOS services via improper certificate validation (shared trust store)”. **Last updated:** 2026-11-04 ## What is CVE-2025-42611? CVE-2025-42611 vulnerability details. No weakness class, CVSS vector or affected-product list has been recorded for CVE-2025-42611 beyond the description above. ## Severity and exploitation probability - **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog ## Is CVE-2025-42611 being exploited? It currently carries a trending score of 5 in the Threadlinqs vulnerability feed. ## Affected products and versions No affected-product or package list has been recorded for CVE-2025-42611 in the tracked sources. The vendor advisory and the references below are the authoritative statement of what is affected. ## How to fix CVE-2025-42611 No vendor patch reference has been recorded for CVE-2025-42611 in the tracked sources. Watch the CNA record and the vendor advisory channel for a fix, and treat any affected deployment as exposed until the vendor states otherwise. ## Threat activity tracking CVE-2025-42611 1 tracked threat in the Threadlinqs corpus references CVE-2025-42611, either in the campaign’s CVE list or as an indicator on the campaign record. - [CVE-2025-42611: Authentication bypass in multiple MikroTik RouterOS services via improper certificate validation (shared trust store)](https://intel.threadlinqs.com/threat/TL-2026-5216) — MEDIUM · 2026-11-04 ## Sources Seeded from `threat-derived` and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent. No external references are recorded on this row. Canonical: https://intel.threadlinqs.com/cve/CVE-2025-42611 Every threat comes with one complete detection in Splunk SPL, Microsoft KQL and Sigma, free for everyone; a free account adds daily TL Creds to unlock the rest. Sign up free (Blue): https://threadlinqs.com/?modal=signup Indicator values unlock with TL Creds (https://threadlinqs.com/tl-creds); MCP access for AI agents needs Purple: https://intel.threadlinqs.com/mcp