CVE-2023-31728
HIGH
Published Feb 17, 2024
Modified May 30, 2025
Description
Teltonika RUT240 devices with firmware before 07.04.2, when bridge mode is used, sometimes make SSH and HTTP services available on the IPv6 WAN interface even though the UI shows that they are only available on the LAN interface.
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CVSS v3.1 Score
7.0
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product |
|---|---|
| teltonika-networks | rut240_firmware |
| teltonika-networks | rut240 |
References
Frequently Asked Questions
What is CVE-2023-31728? +
Teltonika RUT240 devices with firmware before 07.04.2, when bridge mode is used, sometimes make SSH and HTTP services available on the IPv6 WAN interface even though the UI shows that they are only available on the LAN interface. It has a CVSS v3.1 base score of 7.0 (HIGH).
How severe is CVE-2023-31728? +
CVE-2023-31728 has a CVSS v3.1 score of 7.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-31728? +
CVE-2023-31728 affects products from teltonika-networks, specifically: rut240, rut240_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-31728? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.