# CVE-2026-49414 — FreeBSD

> As of 2026-06-27, CVE-2026-49414 is a vulnerability in FreeBSD, EPSS 0.1% (4.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-49414 as of 2026-06-27; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-06-27

## What is CVE-2026-49414?

The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen. An unprivileged local user can disable ASLR for a setuid PIE binary by calling procctl(2) before execve(2). This makes exploitation of any separate memory corruption vulnerability in that binary significantly easier.

The record classifies CVE-2026-49414 under weakness class [CWE-179](https://cwe.mitre.org/data/definitions/179.html). 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 100 days ago.

## Severity and exploitation probability

- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 4.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 0.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-27

## Is CVE-2026-49414 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [FreeBSD](https://intel.threadlinqs.com/vendors/freebsd): FreeBSD

## How to fix CVE-2026-49414

No vendor patch reference has been recorded for CVE-2026-49414 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-49414

No threat campaign in the Threadlinqs corpus currently references CVE-2026-49414, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-06-29. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [security.freebsd.org — vendor advisory](https://security.freebsd.org/advisories/FreeBSD-SA-26:32.elf.asc)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-49414
Full detection coverage and IOCs for threats exploiting CVE-2026-49414 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp