CVE-2026-77120: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in Schneider Electric PowerLogic T300
CVE-2026-77120 is an OS command injection vulnerability in Schneider Electric PowerLogic T300. It allows an authenticated user with SSH access to escalate privileges to root and execute unauthorized administrative functions due to improper neutralization of special elements in OS commands. The vulnerability requires user interaction with the operating system console and involves processing of user-controlled input. It has a high severity score of 8.7 and impacts system integrity and confidentiality.
AI Analysis
Technical Summary
This vulnerability (CWE-78) in Schneider Electric PowerLogic T300 occurs because the system improperly neutralizes special elements used in OS commands. An authenticated user with SSH enabled can exploit this flaw by interacting with the OS console, leading to privilege escalation to root and unauthorized execution of administrative functions. The vulnerability is due to unsafe handling of user-controlled input in OS command processing. No patch or official remediation level has been provided yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an authenticated user with SSH access to escalate privileges to root, potentially compromising system integrity and confidentiality by executing unauthorized administrative commands. This could lead to full control over the affected device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict SSH access to trusted users only and monitor for suspicious activity related to OS command execution. Follow Schneider Electric's advisories for updates.
CVE-2026-77120: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in Schneider Electric PowerLogic T300
Description
CVE-2026-77120 is an OS command injection vulnerability in Schneider Electric PowerLogic T300. It allows an authenticated user with SSH access to escalate privileges to root and execute unauthorized administrative functions due to improper neutralization of special elements in OS commands. The vulnerability requires user interaction with the operating system console and involves processing of user-controlled input. It has a high severity score of 8.7 and impacts system integrity and confidentiality.
CVSS v4.0
Score 8.7high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-78) in Schneider Electric PowerLogic T300 occurs because the system improperly neutralizes special elements used in OS commands. An authenticated user with SSH enabled can exploit this flaw by interacting with the OS console, leading to privilege escalation to root and unauthorized execution of administrative functions. The vulnerability is due to unsafe handling of user-controlled input in OS command processing. No patch or official remediation level has been provided yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation allows an authenticated user with SSH access to escalate privileges to root, potentially compromising system integrity and confidentiality by executing unauthorized administrative commands. This could lead to full control over the affected device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict SSH access to trusted users only and monitor for suspicious activity related to OS command execution. Follow Schneider Electric's advisories for updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- schneider
- Date Reserved
- 2026-08-20T12:54:51.607Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa18b79acd9273b4996dcdf
Added to database: 09/09/2026, 16:38:17 UTC
Last enriched: 09/09/2026, 16:52:05 UTC
Last updated: 09/09/2026, 17:12:03 UTC
Views: 5
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