CVE-2026-18368

Heap buffer overflow in Modbusgwd

Published Aug 13, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Update to RUTOS 7.24.2 or later

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Teltonika-networks
Teltonika-networks rutos
Vendors & Products Teltonika-networks
Teltonika-networks rutos
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
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
tlt_net
Published
Updated
Aug 13, 2026, 2:43 PM
Reserved
Jul 30, 2026, 9:45 AM
Status
Deferred
Published
Aug 13, 2026, 11:17 AM
Modified
Oct 23, 2026, 7:10 PM