What is CVE-2022-43667?

CVE-2022-43667 is a high-severity vulnerability in Omron Cx-Programmer, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-12-07.

How severe is CVE-2022-43667?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Omron Cx-Programmer

CVE-2022-43667

Stack-based buffer overflow vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrary code execution by having a user to open a specially crafted CXP file.

Vulnerability class: Buffer Overflow

Published 2022-12-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (18.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Omron Cx-Programmer
Omron Corporation Cx-Programmer — versions v.9.77 and earlier

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

jvn.jp/en/vu/JVNVU92877622/index.html (VDB Entry, Third Party Advisory)
jvn.jp/vu/JVNVU92877622/index.html (VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2022-43667?: CVE-2022-43667 is a high-severity vulnerability in Omron Cx-Programmer, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-12-07.
How severe is CVE-2022-43667?: High severity. CVSS v3 base score is 7.8 out of 10.