# FreeBSD vulnerabilities & exploitation

> As of 2026-10-05, Threadlinqs tracks 8 FreeBSD CVEs, 0 in the CISA Known Exploited Vulnerabilities catalog, linked to 2 tracked threat campaigns.

**Data as of:** 2026-10-05

## Exploitation timeline

Threadlinqs has recorded 8 FreeBSD CVEs published between 2026-03-15 and 2026-06-15. The busiest month was 2026-06 (7 new CVEs). None of them is listed in CISA KEV yet.

## Most exploited vulnerabilities

Ranked with CISA KEV listings first, then EPSS exploit probability, then CVSS score. Showing 8 of 8 tracked FreeBSD CVEs.

- [CVE-2026-4747](https://intel.threadlinqs.com/cve/CVE-2026-4747) — HIGH 8.8 · EPSS 1.9% · 2026-03-26
- [CVE-2026-45258](https://intel.threadlinqs.com/cve/CVE-2026-45258) — EPSS 0.2% · 2026-06-27
- [CVE-2026-49417](https://intel.threadlinqs.com/cve/CVE-2026-49417) — EPSS 0.2% · 2026-06-27
- [CVE-2026-49416](https://intel.threadlinqs.com/cve/CVE-2026-49416) — EPSS 0.1% · 2026-06-27
- [CVE-2026-49414](https://intel.threadlinqs.com/cve/CVE-2026-49414) — EPSS 0.1% · 2026-06-27
- [CVE-2026-49413](https://intel.threadlinqs.com/cve/CVE-2026-49413) — EPSS 0.1% · 2026-06-27
- [CVE-2026-45259](https://intel.threadlinqs.com/cve/CVE-2026-45259) — EPSS 0.1% · 2026-06-27
- [CVE-2026-49412](https://intel.threadlinqs.com/cve/CVE-2026-49412) — EPSS 0.1% · 2026-06-27

## Products affected

Threadlinqs normalises CPE and CNA product records across all 8 CVEs; 1 distinct FreeBSD product is affected. The most frequently affected:

- FreeBSD — 8 CVEs

## Threat activity

2 tracked threat campaigns reference FreeBSD products or exploit FreeBSD CVEs:

- [CVE-2026-32746: Pre-Auth BSS Buffer Overflow in GNU inetutils telnetd LINEMODE SLC Handling](https://intel.threadlinqs.com/threat/TL-2026-1515) — HIGH — 2026-07-19
- [Claude Mythos / Project Glasswing: Autonomous AI Vulnerability Discovery Compresses the Find-to-Exploit Timeline (CVE-2026-4747 and the AI-Scale Disclosure Problem)](https://intel.threadlinqs.com/threat/TL-2026-1253) — HIGH — 2026-07-13

## How to prioritise FreeBSD patching

This order follows the data Threadlinqs holds for FreeBSD, not a generic severity checklist:

- No FreeBSD CVE is in CISA KEV yet, so rank by exploit probability instead.
- Outside KEV, the highest EPSS scores are [CVE-2026-4747](https://intel.threadlinqs.com/cve/CVE-2026-4747) (1.9%), [CVE-2026-45258](https://intel.threadlinqs.com/cve/CVE-2026-45258) (0.2%), [CVE-2026-49417](https://intel.threadlinqs.com/cve/CVE-2026-49417) (0.2%).
- 0 CVEs score Critical and 1 High on CVSS v3 (maximum 8.8, average 8.8); sequence these after KEV and high-EPSS items.
- 3 CVEs have a public exploit or proof of concept recorded, which shortens the time from disclosure to attack.

## About this data

Vendor attribution comes from the CNA and CPE product records of each CVE, folded to one vendor name; CVSS, EPSS and KEV status are read from the Threadlinqs CVE catalog; campaign and actor links come from tracked threat records. Counts reflect the data as of 2026-10-05 and refresh daily.

Canonical: https://intel.threadlinqs.com/vendors/freebsd
All vendors: https://intel.threadlinqs.com/vendors
Full detection coverage and IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp