CVE-2023-35830
NVD-CWE-noinfoPublished: June 29, 2023· Updated: Jun 17, 2026
Official Description
STW (aka Sensor-Technik Wiedemann) TCG-4 Connectivity Module DeploymentPackage_v3.03r0-Impala and DeploymentPackage_v3.04r2-Jellyfish and TCG-4lite Connectivity Module DeploymentPackage_v3.04r2-Jellyfish allow an attacker to gain full remote access with root privileges without the need for authentication, giving an attacker arbitrary remote code execution over LTE / 4G network via SMS.
Risk Analysis
STW TCG-4 connectivity modules are vulnerable to unauthenticated remote code execution via SMS. This allows an attacker to gain full root access to the device over LTE/4G networks.
No public exploit is known, and it is not in the CISA KEV. It is remotely exploitable.
Update the device firmware to the latest version provided by the manufacturer.
Technical Analysis
CVE-2023-35830 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (4)
Quick Facts
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-35830 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts