CVE-2023-31728

HIGH

CVSS Score

Published: February 17, 2024 at 12:00 AM UTC

Updated: June 17, 2026 at 05:57 AM UTC

3 products affected across 1 vendorRUT240 FirmwareRut240Networks RUT240

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Severity

HIGH7

Exploit prediction

EPSS 0.2%

SSVC

PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

RUT240 Firmware · Teltonika Networks

95%

v < 00.07.04.2v < 07.04.2

Affected range stops below 00.07.04.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 07.04.2, so it looks safe — our inference, not a vendor statement

Networks RUT240 · Teltonika Networks

75%

v < 00.07.04.2v < 07.04.2

Affected range stops below 00.07.04.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 07.04.2, so it looks safe — our inference, not a vendor statement

teltonika-networks-rut240 (same device)

Rut240 · Teltonika Networksdevice

80%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory

Source: [email protected]

https://research.exoticsilicon.com/articles/lte_ethernet_bridge_bug_followup

Third Party Advisory

Source: [email protected]

https://research.exoticsilicon.com/news

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7HIGHCISA-ADP

Attack Vector: LOCAL
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

NVD-CWE-noinfo

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