CVE-2015-3968

The FTP service on Janitza UMG 508, 509, 511, 604, and 605 devices has a default password, which makes it easier for remote attackers to read or write to files via a session on TCP port 21.

Published: 2015-10-28 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3968 is rated Moderate Risk (60.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.27%). EPSS rose +1.88% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-3968

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.39% 2.27% +1.88%
2 2026-02-03 0.34% 0.39% +0.05%
3 2025-06-26 — 0.34% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3968

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2015-3968

Affected software / configurations for CVE-2015-3968

Vendor Product Version Raw CPE
janitza umg_508 — cpe:2.3:h:janitza:umg_508:-:*:*:*:*:*:*:*
janitza umg_509 — cpe:2.3:h:janitza:umg_509:-:*:*:*:*:*:*:*
janitza umg_511 — cpe:2.3:h:janitza:umg_511:-:*:*:*:*:*:*:*
janitza umg_604 — cpe:2.3:h:janitza:umg_604:-:*:*:*:*:*:*:*
janitza umg_605 — cpe:2.3:h:janitza:umg_605:-:*:*:*:*:*:*:*

References for CVE-2015-3968

URL Tags
https://ics-cert.us-cert.gov/advisories/ICSA-15-265-03 Patch Third Party Advisory US Government Resource
cvelogic Threat Intelligence