MEDIUM
CVE-2013-4874
CWE-287Published: July 18, 2013· Updated: Jun 16, 2026
6.2
CVSS v3.1
Official 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.
Technical Analysis
CVE-2013-4874 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:L/AC:H/Au:N/C:C/I:C/A:C
Affected Vendors & Products
verizon1 product(s)
wireless network extender
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (6)
→
http://www.kb.cert.org/vuls/id/458007US Government Resource
→
http://www.kb.cert.org/vuls/id/BLUU-997M5BUS Government Resource
→
http://www.kb.cert.org/vuls/id/458007US Government Resource
→
http://www.kb.cert.org/vuls/id/BLUU-997M5BUS Government Resource
Quick Facts
CVE IDCVE-2013-4874
CVSS Score6.2 / 10
SeverityMEDIUM
WeaknessCWE-287
CISA KEVNo
Affected1 vendor(s)
PublishedJul 18, 2013
Related CVEs (CWE-287)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2013-4874 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.