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CVE-2026-26074· NVD / CVE Program· CNA GitHub_M

EVerest: OCPP201 startup event_queue lock mismatch leads to std::map/std::queue data race

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to possible `std::map<std::queue>` corruption. The trigger is CSMS GetLog/UpdateFirmware request (network) with an EVSE fault event (physical). This results in TSAN reports concurrent access (data race) to `event_queue`. Version 2026.2.0 contains a patch.

HighCVSS 7.0 · v3.1—No exploit No fix recorded

Noroxi analysis

No Noroxi analysis for this record yet

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Published
Mar 26, 2026
Updated
Jun 17, 2026
EPSS
0.2% · 12th percentile
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Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
7.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
linuxfoundationeverest

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linuxfoundation everestbefore 2026.02.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • EVerest everest-core

    • < 2026.02.0affected

Same product

linuxfoundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-22790EVerest's unchecked SLAC payload length causes stack overflow in HomeplugMessage::setup_payload
    35Monitor
  • CVE-2025-68137EVerest's Integer Overflow and Signed to Unsigned conversion lead to either stack buffer overflow or infinite loop
    33Monitor
  • CVE-2026-23995EVerest has stack buffer overflow in ifreq.ifr_name when interface name exceeds IFNAMSIZ
    31Monitor
  • CVE-2026-22593EVerest has off-by-one stack buffer overflow in IsoMux certificate filename parsing
    31Monitor
  • CVE-2026-26008EVerest has OOB via EVSE ID Indexing Mismatch in OCPP 2.0.1 UpdateAllowedEnergyTransferModes
    30Monitor
  • CVE-2025-68141EVerest vulnerable to null pointer dereference during DC_ChargeLoopRes document deserialization
    29Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-330090 days apartEVerest: MQTT Switch-Phases Command Data Race Causing Charger State Corruptio
    26Monitor
  • CVE-2026-260700 days apartEVerest: OCPP 2.0.1 EV SoC Update Race Causes Charge Point Crash
    16Monitor
  • CVE-2026-260710 days apartEVerest: OCPP 2.0.1 EVCCID Data Race Leads to Heap Use‑After‑Free
    16Monitor
  • CVE-2026-260720 days apartEVerest has race-condition-induced std::map corruption in OCPP 1.6 evse_soc_map
    16Monitor
  • CVE-2026-278140 days apartEVerest EvseManager phase-switch path has unsynchronized shared-state access race condition
    16Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
Low
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records