CVE Catalog

CVE-2026-47116

CriticalCVSS 9.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.51%

41th percentile - higher than 41% of all known CVEs

Summary

LTSecurity LTK3500SF contains a hard-coded credentials vulnerability where the root and guest account passwords are stored in /etc/shadow as weak hashes recoverable with dictionary-based cracking tools. The recovered credentials authenticate against the device's Telnet and SSH services and grant root-level access to the operating system. These services are not confirmed to start automatically at boot, so exploitation requires Telnet or SSH to be running, whether enabled by the device configuration or started manually.

Risk Assessment

An attacker can gain full root access to the device, potentially leading to device compromise and network integrity breach.

Recommendation

Change default passwords to strong, unique ones and disable Telnet and SSH services if not needed. Also check for firmware updates from the vendor.

Related vulnerabilities

Original NVD description (English source)

LTSecurity LTK3500SF contains a hard-coded credentials vulnerability where the root and guest account passwords are stored in /etc/shadow as weak hashes recoverable with dictionary-based cracking tools. The recovered credentials authenticate against the device's Telnet and SSH services and grant root-level access to the operating system. These services are not confirmed to start automatically at boot, so exploitation requires Telnet or SSH to be running, whether enabled by the device configuration or started manually.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS