Root code execution via unvalidated OCPP string
Published Apr 11, 2026 · Updated Apr 11, 2026
OS command injection in ChargePoint Home Flex 5.5.4.13 allows remote attackers on an adjacent network to execute code as root. The revssh service handles an attacker-controlled string from an OCPP message without validation and passes it to a system call. No authentication or user interaction is required, but the attacker must reach the charger from an adjacent network; successful exploitation grants root control of the device.
Summary
What happened
OS command injection in ChargePoint Home Flex 5.5.4.13 allows remote attackers on an adjacent network to execute code as root. The revssh service handles an attacker-controlled string from an OCPP message without validation and passes it to a system call. No authentication or user interaction is required, but the attacker must reach the charger from an adjacent network; successful exploitation grants root control of the device.
The record
- CVE
- CVE-2026-4157
- Published
- Apr 11, 2026
- Updated
- Apr 11, 2026
- Vendor
- ChargePoint
- Product
- ChargePoint Home Flex
- Classifications
- CWE-78, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 11, 2026CVE publishedPublication date reported by the CVE source.
- Apr 11, 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.
- Affected versionversion=5.5.4.13
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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