CVE-2026-33009: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in EVerest everest-core
CVE-2026-33009 is a high-severity race condition vulnerability in the EVerest everest-core EV charging software stack versions prior to 2026. 02. 0. The issue arises from concurrent access to shared context objects without proper locking, triggered by a specific MQTT message. This can lead to undefined behavior and potential memory corruption. The vulnerability has been patched in version 2026. 02. 0.
AI Analysis
Technical Summary
EVerest everest-core before version 2026.02.0 contains a data race condition (CWE-362) due to improper synchronization when handling MQTT messages on the topic `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging`. This causes concurrent access to `Charger::shared_context` and `internal_context` without locks, resulting in C++ undefined behavior and potential memory corruption. The vendor released version 2026.02.0 which includes a patch addressing this issue.
Potential Impact
Exploitation of this vulnerability can cause memory corruption due to concurrent unsynchronized access to shared resources. While confidentiality is not impacted, integrity can be compromised, and availability may be severely affected due to potential crashes or unstable behavior. The CVSS score of 8.2 reflects a high impact primarily on integrity and availability with network attack vector and no privileges or user interaction required.
Mitigation Recommendations
A patch is available in EVerest everest-core version 2026.02.0 that fixes the race condition by properly synchronizing access to shared context objects. Users should upgrade to version 2026.02.0 or later to remediate this vulnerability. No additional vendor advisory was provided, so patch status is based on the version information in the description.
CVE-2026-33009: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in EVerest everest-core
Description
CVE-2026-33009 is a high-severity race condition vulnerability in the EVerest everest-core EV charging software stack versions prior to 2026. 02. 0. The issue arises from concurrent access to shared context objects without proper locking, triggered by a specific MQTT message. This can lead to undefined behavior and potential memory corruption. The vulnerability has been patched in version 2026. 02. 0.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
EVerest everest-core before version 2026.02.0 contains a data race condition (CWE-362) due to improper synchronization when handling MQTT messages on the topic `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging`. This causes concurrent access to `Charger::shared_context` and `internal_context` without locks, resulting in C++ undefined behavior and potential memory corruption. The vendor released version 2026.02.0 which includes a patch addressing this issue.
Potential Impact
Exploitation of this vulnerability can cause memory corruption due to concurrent unsynchronized access to shared resources. While confidentiality is not impacted, integrity can be compromised, and availability may be severely affected due to potential crashes or unstable behavior. The CVSS score of 8.2 reflects a high impact primarily on integrity and availability with network attack vector and no privileges or user interaction required.
Mitigation Recommendations
A patch is available in EVerest everest-core version 2026.02.0 that fixes the race condition by properly synchronizing access to shared context objects. Users should upgrade to version 2026.02.0 or later to remediate this vulnerability. No additional vendor advisory was provided, so patch status is based on the version information in the description.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-03-17T17:22:14.664Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69c562cdf4197a8e3be49a92
Added to database: 3/26/2026, 4:46:05 PM
Last enriched: 4/3/2026, 1:13:51 PM
Last updated: 5/10/2026, 10:20:48 AM
Views: 36
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