CVE-2026-81945: Stack Overflow (CVSS 6.6)

Description

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions bfore 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote administrator to cause a denial of service or potentially execute arbitrary code on the underlying operating system.

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CVSS v3.1 Score

6.6

MEDIUM

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

EPSS — Exploit Prediction

0.0058

Probability of exploitation

0.46%

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-121 CWE-121

References

Other References

https://www.planet.com.tw/en/support/security-advisory/11 https://www.vulncheck.com/advisories/planet-igs-5225-8p2t4s-v1-v2-admin-stack-based-buffer-overflow-via-web-server

Frequently Asked Questions

What is CVE-2026-81945? +

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions bfore 1.2412b260707 and 2.2412b260519 contain a stack-based buffer overflow in the web server. Insufficient bounds checking on data copied into a stack buffer allows a remote administrator to cause a denial of service or potentially execute arbitrary code on the underlying operating system. It has a CVSS v3.1 base score of 6.6 (MEDIUM).

How severe is CVE-2026-81945? +

CVE-2026-81945 has a CVSS v3.1 score of 6.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0058, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-81945? +

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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CVE-2026-81945