CVE-2026-35867

Command Injection Vulnerability in LB‑Link AC1900 Firmware via /goform/set_LimitClient_cfg Endpoint

Published Sep 13, 2026 CVSS 3.1 · 3.1 Low EPSS 1.0% KEV · Not listed
Description
A Command Injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of the LB-LINK router AC1900_AZ2 V1.0.2 via shell metacharacters, if the device is deployed in a scenario where an actor is able to make a "POST /goform/set_LimitClient_cfg" call but does not already have administrative access to the device.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Command Injection Vulnerability in LB‑Link AC1900 Firmware via /goform/set_LimitClient_cfg Endpoint
Type Values Removed Values Added
Title Command Injection via POST /goform/set_LimitClient_cfg in LB-Link AC1900 Firmware
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Command Injection via POST /goform/set_LimitClient_cfg in LB-Link AC1900 Firmware
Type Values Removed Values Added
Description A Command Injection vulnerability exists in the bs_SetLimitCli_info function within the libshare.so library of the LB-LINK router AC1900_AZ2 V1.0.2 via shell metacharacters, if the device is deployed in a scenario where an actor is able to make a "POST /goform/set_LimitClient_cfg" call but does not already have administrative access to the device.
First Time appeared Lb-link
Lb-link ac1900 Firmware
Weaknesses CWE-78
CPEs cpe:2.3:a:lb-link:ac1900_firmware:*:*:*:*:*:*:*:*
Vendors & Products Lb-link
Lb-link ac1900 Firmware
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 14, 2026, 3:52 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Sep 13, 2026, 10:16 PM
Modified
Sep 22, 2026, 8:00 PM