How severe is CVE-2015-3971?

CVE-2015-3971 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2015-3971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3971?

CVE-2015-3971 primarily affects Janitza Umg 508. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-3971?

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

When was CVE-2015-3971 published?

CVE-2015-3971 was published on 2015-10-28 and last updated on 2026-06-17.

CVE-2015-3971

CVE-2015-3971 is a high-severity vulnerability in Janitza Umg 508 with a CVSS 2.0 base score of 7.5. 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-284.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Janitza Umg 508
Published: 2015-10-28
Last modified: 2026-06-17

Description

The debug interface on Janitza UMG 508, 509, 511, 604, and 605 devices does not require authentication, which allows remote attackers to read or write to files, or execute arbitrary JASIC code, via a session on TCP port 1239.

Frequently asked questions

What is CVE-2015-3971?: The debug interface on Janitza UMG 508, 509, 511, 604, and 605 devices does not require authentication, which allows remote attackers to read or write to files, or execute arbitrary JASIC code, via a session on TCP port 1239.
How severe is CVE-2015-3971?: CVE-2015-3971 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2015-3971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3971?: CVE-2015-3971 primarily affects Janitza Umg 508. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-3971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-3971 published?: CVE-2015-3971 was published on 2015-10-28 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-15-265-03

Affected products (5)

cpe:2.3:h:janitza:umg_508:-:*:*:*:*:*:*:*
cpe:2.3:h:janitza:umg_509:-:*:*:*:*:*:*:*
cpe:2.3:h:janitza:umg_511:-:*:*:*:*:*:*:*
cpe:2.3:h:janitza:umg_604:-:*:*:*:*:*:*:*
cpe:2.3:h:janitza:umg_605:-:*:*:*:*:*:*:*

More vulnerabilities in Janitza Umg 508

CVE-2015-3972 — Critical (CVSS 10.0): The web interface on Janitza UMG 508, 509, 511, 604, and 605 devices supports only short PIN values for authentication,…
CVE-2015-3968 — High (CVSS 7.5): The FTP service on Janitza UMG 508, 509, 511, 604, and 605 devices has a default password, which makes it easier for…
CVE-2015-3967 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability on Janitza UMG 508, 509, 511, 604, and 605 devices allows remote…
CVE-2015-3973 — Medium (CVSS 5.0): Janitza UMG 508, 509, 511, 604, and 605 devices improperly generate session tokens, which makes it easier for remote…
CVE-2015-3969 — Medium (CVSS 5.0): Janitza UMG 508, 509, 511, 604, and 605 devices allow remote attackers to obtain sensitive network-connection…
CVE-2015-3970 — Medium (CVSS 4.3): Multiple cross-site scripting (XSS) vulnerabilities in the web interface on Janitza UMG 508, 509, 511, 604, and 605…

All CVEs affecting Janitza Umg 508 →

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