CVE-2025-68134 Overview
CVE-2025-68134 is a Denial of Service vulnerability affecting EVerest, an open-source EV (Electric Vehicle) charging software stack. The vulnerability stems from improper use of the assert function to handle errors within the software, which causes modules to crash unexpectedly. This is particularly critical in EVerest's architecture because when any module terminates, the manager component shuts down all other modules and exits, leading to a complete denial of service condition.
Critical Impact
A successful exploitation of this vulnerability can cause complete service disruption across all EVSE (Electric Vehicle Supply Equipment) managed by a single EVerest manager instance, potentially impacting multiple EV charging users simultaneously.
Affected Products
- EVerest everest-core versions prior to 2025.10.0
- EV charging infrastructure deployments using vulnerable EVerest versions
- Multi-EVSE installations with centralized EVerest management
Discovery Timeline
- 2026-01-21 - CVE CVE-2025-68134 published to NVD
- 2026-01-21 - Last updated in NVD database
Technical Details for CVE-2025-68134
Vulnerability Analysis
This vulnerability is classified under CWE-20 (Improper Input Validation). The core issue lies in how EVerest handles error conditions using the C/C++ assert function. The assert macro is designed for debugging purposes and terminates the program when its condition evaluates to false. Using assert for runtime error handling in production code is problematic because it creates an exploitable crash condition.
When an attacker can trigger an assertion failure through malformed input or unexpected conditions, the affected module crashes. Due to EVerest's architecture, where the manager monitors all child modules, a single module crash triggers a cascading shutdown of the entire system. In deployments where one manager oversees multiple EVSE units, this means all charging stations become unavailable, affecting all connected users.
The adjacent network attack vector indicates that an attacker needs to be on the same network segment as the EVerest deployment to exploit this vulnerability, which is typical for EV charging infrastructure where chargers communicate over local networks.
Root Cause
The root cause is the inappropriate use of assert statements for handling runtime errors instead of proper exception handling or error recovery mechanisms. The assert function is intended for catching programming errors during development and should not be used to handle user input validation or operational conditions in production environments. When assertions are enabled in production builds, any condition that triggers an assertion failure causes immediate program termination.
Attack Vector
The vulnerability can be exploited from an adjacent network position without requiring authentication or user interaction. An attacker on the same network as the EVerest deployment can send specially crafted requests or inputs designed to trigger assertion failures in the software modules. The cascading nature of the shutdown—where one module failure causes all modules to terminate—amplifies the impact significantly.
The attack does not require any privileges and has a changed scope, meaning the security impact extends beyond the vulnerable component to affect other EVSE units and users sharing the same manager instance.
Detection Methods for CVE-2025-68134
Indicators of Compromise
- Unexpected termination of EVerest manager or module processes
- Sudden unavailability of multiple EVSE units simultaneously
- System logs showing assertion failure messages or SIGABRT signals
- Repeated service restarts followed by immediate crashes
Detection Strategies
- Monitor EVerest process health and implement alerting for unexpected terminations
- Implement network traffic analysis for anomalous patterns targeting EV charging infrastructure
- Deploy logging solutions to capture assertion failures and crash dumps
- Use SentinelOne Singularity to detect and alert on process termination anomalies
Monitoring Recommendations
- Configure centralized logging to aggregate EVerest module logs for crash pattern analysis
- Implement service availability monitoring with rapid alerting for EVSE downtime
- Monitor network traffic for unusual connection patterns from adjacent network segments
- Establish baseline behavior metrics to detect deviation indicating potential exploitation
How to Mitigate CVE-2025-68134
Immediate Actions Required
- Upgrade EVerest everest-core to version 2025.10.0 or later immediately
- Review network segmentation to limit adjacent network access to EVerest deployments
- Implement network access controls to restrict communication to authorized devices only
- Enable enhanced logging to capture potential exploitation attempts
Patch Information
The vulnerability has been fixed in EVerest everest-core version 2025.10.0. The fix replaces improper assert usage with appropriate error handling mechanisms that gracefully handle error conditions without causing module termination. Organizations should upgrade to the patched version as soon as possible to eliminate this denial of service risk.
For detailed patch information, refer to the GitHub Security Advisory.
Workarounds
- Implement network segmentation to isolate EVerest systems from untrusted adjacent network segments
- Deploy network intrusion detection systems to identify and block malicious traffic
- Configure process supervisors with rate limiting on restarts to prevent restart loops during active exploitation
- Consider deploying redundant EVerest manager instances to maintain partial service availability during attacks
# Example network isolation configuration (iptables)
# Restrict access to EVerest management ports from trusted sources only
iptables -A INPUT -p tcp --dport 8080 -s 192.168.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
