CVE-2013-4874: verizon wireless_network_extender Improper Authentication
Vulnerability summary
CVE-2013-4874 is a medium (CVSS 6.2) Improper Authentication vulnerability in verizon wireless_network_extender. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 52.6% of scored vulnerabilities.
Not severe (CVSS 6.2, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 18-07-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The Uboot bootloader on the Verizon Wireless Network Extender SCS-26UC4 allows physically proximate attackers to obtain root access by connecting a crafted HDMI cable and using a sys session to modify the ramboot environment variable.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.68%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.68% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Verizon1 product
- wireless_network_extenderscs-26uc4
1 vendor · 1 product