What is CVE-2026-35867?

CVE-2026-35867 is a low-severity vulnerability in Lb-Link Ac1900 Firmware, classified under OS Command Injection. CVSS score: 3.1/10. Published 2026-09-13.

How severe is CVE-2026-35867?

Low severity. CVSS v3 base score is 3.1 out of 10.

RCE in Lb-Link Ac1900 Firmware

CVE-2026-35867

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.005 (42.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L.

Affected products

Lb-link Ac1900 Firmware — versions 1.0.2

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-35867?: CVE-2026-35867 is a low-severity vulnerability in Lb-Link Ac1900 Firmware, classified under OS Command Injection. CVSS score: 3.1/10. Published 2026-09-13.
How severe is CVE-2026-35867?: Low severity. CVSS v3 base score is 3.1 out of 10.