CVE-2026-18368
Heap buffer overflow in Modbusgwd
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.
INFO
Published Date :
Aug. 13, 2026, 11:17 a.m.
Last Modified :
Aug. 13, 2026, 11:17 a.m.
Remotely Exploit :
No
Source :
001d69cf-3fc9-4203-93fb-9865b54e05b2
Affected Products
The following products are affected by CVE-2026-18368
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | 001d69cf-3fc9-4203-93fb-9865b54e05b2 | ||||
| CVSS 4.0 | MEDIUM | 001d69cf-3fc9-4203-93fb-9865b54e05b2 |
Solution
- Update device firmware to the latest version.
- Restrict access to the affected Modbus service.
- Disable the Modbus service if not required.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-18368.
| URL | Resource |
|---|---|
| https://www.teltonika-networks.com/support/security-centre?report=CVE-2026-18368 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-18368 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-18368
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-18368 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-18368 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 001d69cf-3fc9-4203-93fb-9865b54e05b2
Aug. 13, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Teltonika Networks', 'product': 'RUTOS', 'versions': [{'status': 'affected', 'version': '7.12.0', 'versionType': 'semver', 'lessThanOrEqual': '7.24.1'}], 'packageName': 'modbusgwd', 'defaultStatus': 'unaffected'}] 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. Added CVSS V4.0 AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-122 Added Reference https://www.teltonika-networks.com/support/security-centre?report=CVE-2026-18368