CVE-2026-36174

Description

GNCC GP5 v7.1.76 was discovered to store sensitive wireless network information in plaintext during routine operations to the serial console. This issue allows physically-proximate attackers to obtain sensitive information, including network credentials, via monitoring the serial UART interface.

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CVSS v3.1 Score

4.6

MEDIUM

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

EPSS — Exploit Prediction

0.0016

Probability of exploitation

0.05%

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-256 CWE-256

References

Other References

http://gncc.com http://gp5.com https://github.com/BadChemical/IoT-Vulnerability-Research-Public/blob/main/GNCC-GP5-T23/README.md https://github.com/BadChemical/IoT-Vulnerability-Research-Public/blob/main/GNCC-GP5-T23/README.md

Frequently Asked Questions

What is CVE-2026-36174? +

GNCC GP5 v7.1.76 was discovered to store sensitive wireless network information in plaintext during routine operations to the serial console. This issue allows physically-proximate attackers to obtain sensitive information, including network credentials, via monitoring the serial UART interface. It has a CVSS v3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2026-36174? +

CVE-2026-36174 has a CVSS v3.1 score of 4.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0016, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-36174? +

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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