CVE-2026-47116
LTSecurity LTK3500SF Hard-coded Credentials via Telnet/SSH
- State
- Published
- Severity
- 9.2 Critical
- Published
- Sep 22, 2026
- Updated
- Sep 23, 2026
- Reserved
- May 18, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-798 Use of Hard-coded Credentials
Affected Products
| Product | Versions |
|---|---|
LTK3500SFLTSecurity |
|
References
- Researcher Disclosuretechnical-descriptionexploit
- https://www.vulncheck.com/advisories/ltsecurity-ltk3500sf-hard-coded-credentials-via-telnet-sshthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.