CVE-2015-3959

The firmware in MNS before 4.5.6 on Belden GarrettCom Magnum 6K and Magnum 10K switches has a hardcoded serial-console password for a privileged account, which might allow physically proximate attackers to obtain access by establishing a console session to a nonstandard installation on which this account is enabled, and leveraging knowledge of this password.

Published: 2015-08-04 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3959 is rated Low Risk (39.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.38%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2015-3959

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 0.05% 0.38% +0.32%
2 2023-03-07 0.89% 0.05% -0.84%
3 2022-02-04 — 0.89% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3959

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2015-3959

NVD evaluator notes for CVE-2015-3959

Comment: <a href="http://cwe.mitre.org/data/definitions/798.html" target="_blank">CWE-798: Use of Hard-coded Credentials</a>

Affected software / configurations for CVE-2015-3959

Vendor Product Version Raw CPE
garrettcom magnum_10k_firmware <= 4.5.5 cpe:2.3:o:garrettcom:magnum_10k_firmware:*:*:*:*:*:*:*:*
garrettcom magnum_6k_firmware <= 4.5.5 cpe:2.3:o:garrettcom:magnum_6k_firmware:*:*:*:*:*:*:*:*

References for CVE-2015-3959

cvelogic Threat Intelligence