CVE-2026-18368 - Vulnerability Details - OpenCVE

In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd
due to improper handling of Modbus TCP request data. A remote,
unauthenticated attacker with access to the affected service could
trigger a heap-based buffer overflow, resulting in a denial of service.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Teltonika Networks

RUTOS

unaffected

Version	Status	Constraints
`7.12.0`	affected	≤ 7.24.1

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

Update to RUTOS 7.24.2 or later

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.teltonika-networks.com/support/security-centre?report=CVE-2026-18368

History

Thu, 13 Aug 2026 11:15:00 +0000

Type	Values Removed	Values Added
Description		In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd due to improper handling of Modbus TCP request data. A remote, unauthenticated attacker with access to the affected service could trigger a heap-based buffer overflow, resulting in a denial of service.
Title		Heap buffer overflow in Modbusgwd
Weaknesses		CWE-122
References		https://www.teltonika-networks.com/support/security-centre?report=CVE-2026-18368
Metrics		cvssV4_0 `{'score': 6, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: tlt_net

Published: 2026-08-13T10:52:35.564Z

Updated: 2026-08-13T10:52:35.564Z

Reserved: 2026-07-30T09:45:28.289Z

Link: CVE-2026-18368

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-08-13T11:17:38.497

Modified: 2026-08-13T11:17:38.497

Link: CVE-2026-18368

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-122

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