---
id: CVE-2026-77120
title: >-
  CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS
  Command Injection') vulnerability exists that could cause privilege escalation
  to root and unauthorized execution of administrative functions when an
  authenti…
summary: >-
  CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS
  Command Injection') vulnerability exists that could cause privilege escalation
  to root and unauthorized execution of administrative functions when an
  authenti…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'
cwe:
  - CWE-78
vendor: Schneider Electric
product: PowerLogic T300
affected:
  - powerlogic_t300 Versions 2.9.8-5620 and prior
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:17:03.923'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77120'
references:
  - url: >-
      https://download.se.com/files?p_Doc_Ref=SEVD-2026-251-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2026-251-02.pdf
    label: cybersecurity@se.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T17:04:36.960582Z'
cvssSource: cna
ingestedAt: '2026-09-13T14:47:07.023Z'
epss: 0.00666
epssPercentile: 0.49711
---

## Overview

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability exists that could cause privilege escalation to root and unauthorized execution of administrative functions when an authenticated user with SSH enabled interacts with the operating system console that improperly processes user-controlled input.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.