How severe is CVE-2026-33009?

CVE-2026-33009 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.

Is CVE-2026-33009 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33009?

CVE-2026-33009 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33009?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-33009 have an EU (EUVD) identifier?

Yes. CVE-2026-33009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16250.

When was CVE-2026-33009 published?

CVE-2026-33009 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-33009

CVE-2026-33009 is a high-severity vulnerability in Linuxfoundation Everest with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: High (CVSS 3.x base score 8.2)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16250
Weakness: CWE-362
Affected product: Linuxfoundation Everest
Published: 2026-03-26
Last modified: 2026-06-17

Description

EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to C++ UB (potential memory corruption). This is triggered by an MQTT `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging` message and results in `Charger::shared_context` / `internal_context` accessed concurrently without lock. Version 2026.02.0 contains a patch.

Frequently asked questions

What is CVE-2026-33009?: EVerest is an EV charging software stack. Versions prior to 2026.02.0 have a data race leading to C++ UB (potential memory corruption). This is triggered by an MQTT `everest_external/nodered/{connector}/cmd/switch_three_phases_while_charging` message and results in `Charger::shared_context` / `internal_context` accessed concurrently without lock. Version 2026.02.0 contains a patch.
How severe is CVE-2026-33009?: CVE-2026-33009 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability high.
Is CVE-2026-33009 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33009?: CVE-2026-33009 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33009?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-33009 have an EU (EUVD) identifier?: Yes. CVE-2026-33009 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16250.
When was CVE-2026-33009 published?: CVE-2026-33009 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-33qh-fg6f-jjx5

Affected products (1)

cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*

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