How severe is CVE-2015-3974?

CVE-2015-3974 has a CVSS 2.0 base score of 9.0, rated critical severity.

Is CVE-2015-3974 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3974?

CVE-2015-3974 primarily affects Easyio Easyio-30p-sf Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3974?

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-2015-3974 published?

CVE-2015-3974 was published on 2015-09-28 and last updated on 2026-06-17.

CVE-2015-3974

CVE-2015-3974 is a critical-severity vulnerability in Easyio Easyio-30p-sf Firmware with a CVSS 2.0 base score of 9.0. 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-255.

Key facts

Severity: Critical (CVSS 2.0 base score 9.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Easyio Easyio-30p-sf Firmware
Published: 2015-09-28
Last modified: 2026-06-17

Description

EasyIO EasyIO-30P-SF controllers with firmware before 0.5.21 and 2.x before 2.0.5.21, as used in Accutrol, Bar-Tech Automation, Infocon/EasyIO, Honeywell Automation India, Johnson Controls, SyxthSENSE, Transformative Wave Technologies, Tridium Asia Pacific, and Tridium Europe products, have a hardcoded password, which makes it easier for remote attackers to obtain access via unspecified vectors.

Frequently asked questions

What is CVE-2015-3974?: EasyIO EasyIO-30P-SF controllers with firmware before 0.5.21 and 2.x before 2.0.5.21, as used in Accutrol, Bar-Tech Automation, Infocon/EasyIO, Honeywell Automation India, Johnson Controls, SyxthSENSE, Transformative Wave Technologies, Tridium Asia Pacific, and Tridium Europe products, have a hardcoded password, which makes it easier for remote attackers to obtain access via unspecified vectors.
How severe is CVE-2015-3974?: CVE-2015-3974 has a CVSS 2.0 base score of 9.0, rated critical severity.
Is CVE-2015-3974 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3974?: CVE-2015-3974 primarily affects Easyio Easyio-30p-sf Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3974?: 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-2015-3974 published?: CVE-2015-3974 was published on 2015-09-28 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-15-237-02

Affected products (2)

cpe:2.3:o:easyio:easyio-30p-sf_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:easyio:easyio-30p-sf:*:*:*:*:*:*:*:*

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