What is CVE-2015-0987?

CVE-2015-0987 is a critical-severity vulnerability in Omron Cj2h Plc, classified under Information Disclosure. CVSS score: 10.0/10. Published 2015-10-06.

How severe is CVE-2015-0987?

Critical severity. CVSS v3 base score is 10.0 out of 10.

Information disclosure in Omron Cj2h Plc

CVE-2015-0987

Omron CX-One CX-Programmer before 9.6, CJ2M PLC devices before 2.1, and CJ2H PLC devices before 1.5 rely on cleartext password transmission, which allows remote attackers to obtain sensitive information by sniffing the network during a PLC unlock request.

Vulnerability class: Information Disclosure

Published 2015-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:H.

EPSS exploit prediction

EPSS: 0.012 (66.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Weakness classification (CWE)

References

ics-cert.us-cert.gov/advisories/ICSA-15-274-01 (US Government Resource, Third Party Advisory)

Frequently asked questions

What is CVE-2015-0987?: CVE-2015-0987 is a critical-severity vulnerability in Omron Cj2h Plc, classified under Information Disclosure. CVSS score: 10.0/10. Published 2015-10-06.
How severe is CVE-2015-0987?: Critical severity. CVSS v3 base score is 10.0 out of 10.