How severe is CVE-2015-0987?

CVE-2015-0987 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability high.

Is CVE-2015-0987 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0987?

CVE-2015-0987 primarily affects Omron Cx-programmer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-0987?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-0987 published?

CVE-2015-0987 was published on 2015-10-06 and last updated on 2026-06-17.

CVE-2015-0987

CVE-2015-0987 is a critical-severity vulnerability in Omron Cx-programmer with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 5.0
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Omron Cx-programmer
Published: 2015-10-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-0987?: CVE-2015-0987 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability high.
Is CVE-2015-0987 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0987?: CVE-2015-0987 primarily affects Omron Cx-programmer. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-0987?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-0987 published?: CVE-2015-0987 was published on 2015-10-06 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-15-274-01

Affected products (3)

cpe:2.3:a:omron:cx-programmer:*:*:*:*:*:*:*:*
cpe:2.3:h:omron:cj2h_plc:*:*:*:*:*:*:*:*
cpe:2.3:h:omron:cj2m_plc:*:*:*:*:*:*:*:*

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