How severe is CVE-2026-27828?

CVE-2026-27828 has a CVSS 3.x base score of 7.5, 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 none, and availability high.

Is CVE-2026-27828 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27828?

CVE-2026-27828 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27828?

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-2026-27828 have an EU (EUVD) identifier?

Yes. CVE-2026-27828 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16228.

When was CVE-2026-27828 published?

CVE-2026-27828 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-27828

CVE-2026-27828 is a high-severity vulnerability in Linuxfoundation Everest with a CVSS 3.x base score of 7.5. 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-416.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 5.5
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16228
Weakness: CWE-416
Affected product: Linuxfoundation Everest
Published: 2026-03-26
Last modified: 2026-06-17

Description

EVerest is an EV charging software stack. Prior to version 2026.02.0, ISO15118_chargerImpl::handle_session_setup uses v2g_ctx after it has been freed when ISO15118 initialization fails (e.g., no IPv6 link-local address). The EVSE process can be crashed remotely by an attacker with MQTT access who issues a session_setup command while v2g_ctx has been released. Version 2026.02.0 contains a patch.

Frequently asked questions

What is CVE-2026-27828?: EVerest is an EV charging software stack. Prior to version 2026.02.0, ISO15118_chargerImpl::handle_session_setup uses v2g_ctx after it has been freed when ISO15118 initialization fails (e.g., no IPv6 link-local address). The EVSE process can be crashed remotely by an attacker with MQTT access who issues a session_setup command while v2g_ctx has been released. Version 2026.02.0 contains a patch.
How severe is CVE-2026-27828?: CVE-2026-27828 has a CVSS 3.x base score of 7.5, 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 none, and availability high.
Is CVE-2026-27828 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27828?: CVE-2026-27828 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27828?: 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-2026-27828 have an EU (EUVD) identifier?: Yes. CVE-2026-27828 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16228.
When was CVE-2026-27828 published?: CVE-2026-27828 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-5g3v-qc79-qqwr

Affected products (1)

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

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