CVE-2015-3973

Janitza UMG 508, 509, 511, 604, and 605 devices improperly generate session tokens, which makes it easier for remote attackers to determine a PIN value via unspecified computations on session-token values.

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-2015-3973 is rated Moderate Risk (45.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.48%). 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-2015-3973

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 0.80% 1.48% +0.69%
2 2026-02-03 0.73% 0.80% +0.07%
3 2025-09-24 — 0.73% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3973

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N 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:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2015-3973

Affected software / configurations for CVE-2015-3973

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-2015-3973

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