CVE-2026-81943

Root code execution via activatable debug mode

Published Sep 18, 2026 · Updated Sep 18, 2026

Active debug code in PLANET IGS-5225-8P2T4S V1 and V2 before 1.2412b260707 and 2.2412b260519 allows local users to gain root access. The embedded firmware retains a production debug mode that a privileged device user can activate to execute arbitrary code on the underlying operating system. Administrative device access is required, and successful use grants complete control of the switch operating system.

CVSS severity8.4
High
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Active debug code in PLANET IGS-5225-8P2T4S V1 and V2 before 1.2412b260707 and 2.2412b260519 allows local users to gain root access. The embedded firmware retains a production debug mode that a privileged device user can activate to execute arbitrary code on the underlying operating system. Administrative device access is required, and successful use grants complete control of the switch operating system.

The record

CVE
CVE-2026-81943
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
PLANET Technology Corp.
Product
IGS-5225-8P2T4S
Classifications
CWE-489, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.2412b260707
  2. Affected versionversion=0 <2.2412b260519

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

PLANET Technology Corp. · IGS-5225-8P2T4Sversion=0 <1.2412b260707; version=0 <2.2412b260519

Published CVSS scores

6.7PLANET Technology Corp.CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.4PLANET Technology Corp.CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-489Active Debug Code
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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