CVE-2015-3960

The firmware in MNS before 4.5.6 on Belden GarrettCom Magnum 6K and Magnum 10K switches uses hardcoded RSA private keys and certificates across different customers' installations, which makes it easier for remote attackers to defeat cryptographic protection mechanisms for HTTPS sessions by leveraging knowledge of a private key from another installation.

Published: 2015-08-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3960 is rated Low Risk (36.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.88%). 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-2015-3960

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 0.44% 0.88% +0.44%
2 2025-12-26 0.33% 0.44% +0.11%
3 2025-11-10 — 0.33% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3960

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/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:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-3960

Affected software / configurations for CVE-2015-3960

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-2015-3960

cvelogic Threat Intelligence