CVE-2026-47116: critical vulnerability in LTSecurity LTK3500SF
LTSecurity LTK3500SF Hard-coded Credentials via Telnet/SSH
Published · Updated
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.2epss 0.5%
exploitation probability
0.5%top 58% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
LTSecurity · LTK3500SFpublic PoCs found — 1
cve_referencegithub.com/AndreaLandriscina/Hardcoded-Credentials-in-LTSecurity-LTK3500SFunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.