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Everest CVE-2026-26070

| EUVDEUVD-2026-16203 MEDIUM
Race Condition (CWE-362)
2026-03-26 GitHub_M
4.6
CVSS 3.1 · GitHub Advisory
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Concurrency control, locking
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

The CVSS 4.6 score with vector CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H reflects a physically proximate attack vector (AV:P - physical access to the charging station or its network), low attack complexity, no privilege requirement, no user interaction, and high availability impact with no confidentiality or integrity impact. However, SSVC decision framework data indicates Exploitation: none (no confirmed active exploitation), Automatable: no (manual interaction required to coordinate concurrent updates), and Technical Impact: partial (denial of service only, not full system compromise). The absence of confirmed public exploits and CISA KEV status, combined with automatable=no and AV:P constraints, suggests this is a moderate practical risk for deployed infrastructure. Organizations must weigh the high availability impact (charging service disruption) against the requirement for physical proximity and deliberate timing of concurrent operations. Real-world priority depends on deployment: critical for public charging networks, lower priority for isolated/monitored installations.

Exploit ScenarioDerived

An attacker with physical access to a charging station (or compromised network access to its control plane) could deliberately trigger a data race by simultaneously initiating an EV state-of-charge read, forcing a power meter periodic update cycle, and unplugging the vehicle or sending a SessionFinished command. This requires precise timing and knowledge of internal thread scheduling, but no elevated privileges. The resulting map corruption causes the charging stack to crash or enter an undefined state, denying service to legitimate users until manual recovery or automatic watchdog restart occurs. Attack complexity is non-trivial (automatable=no), making opportunistic exploitation unlikely; however, targeted denial of service against critical charging infrastructure is plausible.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 26, 2026

Concurrent access to std::map<std::optional> in EVerest-Core versions prior to 2026.02.0 causes a data race condition that can corrupt container state during simultaneous EV state-of-charge updates, power meter periodic updates, and session termination events, resulting in denial of service of the EV charging stack. EVerest-Core (cpe:2.3:a:everest:everest-core) is the affected product, with patched version 2026.02.0 available. No public exploit code has been identified at time of analysis, and this vulnerability is not confirmed actively exploited; however, the condition is readily triggerable through normal charging operations combining multiple concurrent data sources.

RemediationAI

Upgrade EVerest-Core to version 2026.02.0 or later as released by the EVerest project. For deployments unable to immediately patch, implement network-level isolation of charging station management interfaces and power meter communication streams to reduce the likelihood of concurrent data stream interference, though this does not eliminate the underlying race condition. Monitor system logs for unexpected session terminations or availability drops, which may indicate exploitation attempts or trigger conditions. Deploy the upgrade at the earliest maintenance window, as the patch directly addresses the synchronization defect without known side effects.

Affected VersionsENISA

everest-core < 2026.02.0

Affected Packages

euvd everest_core fix: 2026.02.0

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

EVerest is an open-source EV charging software stack that manages real-time state across multiple concurrent data streams including vehicle state-of-charge telemetry, AC/DC power meter readings, and session lifecycle events. The vulnerability is rooted in CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization), specifically a race condition within std::map<std::optional> container operations. The affected product is identified via CPE cpe:2.3:a:everest:everest-core:*:*:*:*:*:*:*:*. The race occurs when three concurrent operations interact: (1) EV SoC update threads writing vehicle state, (2) power meter periodic update threads reading/writing meter data, and (3) session lifecycle transitions (unplugging or SessionFinished state changes). Without proper synchronization primitives (mutexes, atomics, or lock-free structures), concurrent map access results in undefined behavior, including iterator invalidation, double-deletion, or memory corruption of the optional wrapper itself.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 4.6 MEDIUM
AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector
Physical
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

2
Patch available
Apr 16, 2026 - 05:29 EUVD
2026.02.0
CVE Published
Mar 26, 2026 - 14:45 nvd
MEDIUM 4.6

DescriptionGitHub Advisory

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to std::map<std::optional> concurrent access (container/optional corruption possible). The trigger is an EV SoC update with powermeter periodic update and unplugging/SessionFinished state. Version 2026.2.0 contains a patch.

Executive ViewAI

Why It Matters

Organizations using EVerest should be aware of moderate risk from CVE-2026-26070, a race condition vulnerability rated CVSS 4.6. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: implement rate limiting and resource quotas.

Threat Intelligence Overview

EPSS Score
0.0%
Top 96% exploitable
Data Quality
6 sources
Confidence: High

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact
Low
Technical Impact
Partial

Priority Score

23
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +23
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Race conditions occur when multiple concurrent requests exploit the brief time gap between checking a condition and acting upon it (TOCTOU - Time of Check, Time of Use).

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