CVE-2026-35867: Command Injection (CVSS 3.1)

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.

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CVSS v3.1 Score

3.1

LOW

CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:L

EPSS — Exploit Prediction

0.0052

Probability of exploitation

0.43%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://github.com/Orcust-Automaton/Vulnerability/blob/main/LB-Link/AC1900_AZ2/bs_SetLimitCli_info.md https://github.com/Orcust-Automaton/Vulnerability/blob/main/LB-Link/AC1900_AZ2/bs_SetLimitCli_info.md

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 3.1 (LOW).

How severe is CVE-2026-35867? +

CVE-2026-35867 has a CVSS v3.1 score of 3.1 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0052, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-35867? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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