CVE-2013-4877

The Verizon Wireless Network Extender SCS-26UC4 and SCS-2U01 does not use CAVE authentication, which makes it easier for remote attackers to obtain ESN and MIN values from arbitrary phones, and conduct cloning attacks, by sniffing the network for registration packets.

Published: 2013-07-18 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4877 is rated Low Risk (28.2/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.78%). 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-2013-4877

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 0.90% 0.78% -0.11%
2 2025-09-24 0.24% 0.90% +0.66%
3 2025-03-30 — 0.24% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4877

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.6 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 1.9 4.9 [email protected]

Weakness enumeration for CVE-2013-4877

Affected software / configurations for CVE-2013-4877

Vendor Product Version Raw CPE
verizon wireless_network_extender scs-2u01 cpe:2.3:h:verizon:wireless_network_extender:scs-2u01:*:*:*:*:*:*:*
verizon wireless_network_extender scs-26uc4 cpe:2.3:h:verizon:wireless_network_extender:scs-26uc4:*:*:*:*:*:*:*

References for CVE-2013-4877

cvelogic Threat Intelligence