How severe is CVE-2015-3939?

CVE-2015-3939 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-3939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3939?

CVE-2015-3939 primarily affects Ids Nc854. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3939?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-3939 published?

CVE-2015-3939 was published on 2015-05-31 and last updated on 2026-06-17.

CVE-2015-3939

CVE-2015-3939 is a medium-severity vulnerability in Ids Nc854 with a CVSS 2.0 base score of 6.8. 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-22.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Ids Nc854
Published: 2015-05-31
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the NC854 and NC856 modules for IDS RTU 850C devices allows remote authenticated users to read arbitrary files via unspecified vectors involving an internal web server, as demonstrated by reading a TELNET credentials file.

Frequently asked questions

What is CVE-2015-3939?: Directory traversal vulnerability in the NC854 and NC856 modules for IDS RTU 850C devices allows remote authenticated users to read arbitrary files via unspecified vectors involving an internal web server, as demonstrated by reading a TELNET credentials file.
How severe is CVE-2015-3939?: CVE-2015-3939 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-3939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3939?: CVE-2015-3939 primarily affects Ids Nc854. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3939 published?: CVE-2015-3939 was published on 2015-05-31 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ids:nc854:-:*:*:*:*:*:*:*
cpe:2.3:a:ids:nc856:-:*:*:*:*:*:*:*

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