What is CVE-2022-40984?

CVE-2022-40984 is a critical-severity vulnerability in Yokogawa Wtviewere 761941, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-10-24.

How severe is CVE-2022-40984?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Yokogawa Wtviewere 761941

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 cause the product to crash by processing a long file name.

Vulnerability class: Buffer Overflow

Published 2022-10-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000

Affected products

Yokogawa Wtviewere 761941
Yokogawa Wtviewerefree
Yokogawa Test & Measurement Corporation Wtviewere Series — versions WTViewerE 761941 from 1.31 to 1.61 and WTViewerEfree from 1.01 to 1.52

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cdn.aff.yokogawa.com/8/756/details/Vulnerability_in_YOKOGAWA_application_softwa… (Vendor Advisory)
jvn.jp/en/vu/JVNVU99955870/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2022-40984?: CVE-2022-40984 is a critical-severity vulnerability in Yokogawa Wtviewere 761941, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-10-24.
How severe is CVE-2022-40984?: Critical severity. CVSS v3 base score is 9.8 out of 10.