CVE-2026-4156
Last modified
CVE-2026-4156 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ChargePoint Home Flex OCPP getpreq Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ChargePoint Home Flex EV chargers. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
ChargePoint Home Flex OCPP getpreq Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of ChargePoint Home Flex EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OCPP messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-26339.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chargepoint | Home Flex Cph50 Firmware | < 5.5.4.22 |
References
- https://www.zerodayinitiative.com/advisories/ZDI-26-196/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-4156?
How severe is CVE-2026-4156?
How do I fix CVE-2026-4156?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-41554Improper Neutralization of Input During Web Page Generation …7.1
- CVE-2026-41555Unauthenticated SQL Injection in Newsletter Subscription For…9.3
- CVE-2026-41556Subscriber Cross Site Scripting (XSS) in ProfilePress <= 4.1…6.5
- CVE-2026-41557Unauthenticated Cross Site Scripting (XSS) in Kapee < 1.7.1 …7.1
- CVE-2026-41558Subscriber Bypass Vulnerability in WP Migration Plugin DB & …7.5
- CVE-2026-41559Unauthenticated Sensitive Data Exposure in SafeSnap – Verifi…7.5
- CVE-2026-41560Unauthenticated Broken Access Control in WXD Backup Lite <= …7.5
- CVE-2026-41561Unauthenticated Sensitive Data Exposure in Museder RestoreOn…7.5
- CVE-2026-41562Unauthenticated Sensitive Data Exposure in Norvis Backup <= …7.5
- CVE-2026-41563Unauthenticated Sensitive Data Exposure in Sitemovr <= 1.0.1…7.5
- CVE-2026-41564CryptX versions before 0.088 for Perl do not reseed the Cryp…7.5
- CVE-2026-41565CryptX versions before 0.088_001 for Perl have a stack buffe…7.5
Are you affected by CVE-2026-4156?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST