What is CVE-2026-81943?

CVE-2026-81943 is a medium-severity vulnerability in Planet Technology Corp. Igs-5225-8p2t4s V1, classified under Active Debug Code. CVSS score: 6.7/10. Published 2026-09-18.

How severe is CVE-2026-81943?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Planet Technology Corp. Igs-5225-8p2t4s V1

CVE-2026-81943

PLANET IGS-5225-8P2T4S industrial managed switch V1 and V2 firmware versions before 1.2412b260707 and 2.2412b260519 contain active debug functionality in the embedded software. An attacker with privileged access to the device can enable this debug mode to execute arbitrary code on the underlying operating system and gain root-level access.

Published 2026-09-18 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.0th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-489 — Active Debug Code

References

www.planet.com.tw/en/support/security-advisory/11 (vendor-advisory, patch)
www.vulncheck.com/advisories/planet-igs-5225-8p2t4s-v1-v2-debug-mode-rce (third-party-advisory)

Frequently asked questions

What is CVE-2026-81943?: CVE-2026-81943 is a medium-severity vulnerability in Planet Technology Corp. Igs-5225-8p2t4s V1, classified under Active Debug Code. CVSS score: 6.7/10. Published 2026-09-18.
How severe is CVE-2026-81943?: Medium severity. CVSS v3 base score is 6.7 out of 10.