How severe is CVE-2026-22593?

CVE-2026-22593 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-22593 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22593?

CVE-2026-22593 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22593?

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-2026-22593 have an EU (EUVD) identifier?

Yes. CVE-2026-22593 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16173.

When was CVE-2026-22593 published?

CVE-2026-22593 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-22593

CVE-2026-22593 is a high-severity vulnerability in Linuxfoundation Everest with a CVSS 3.x base score of 8.4. 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-193.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16173
Weakness: CWE-193
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, an off-by-one check in IsoMux certificate filename handling causes a stack-based buffer overflow when a filename length equals `MAX_FILE_NAME_LENGTH` (100). A crafted filename in the certificate directory can overflow `file_names[idx]`, corrupting stack state and enabling potential code execution. Version 2026.02.0 contains a patch.

Frequently asked questions

What is CVE-2026-22593?: EVerest is an EV charging software stack. Prior to version 2026.02.0, an off-by-one check in IsoMux certificate filename handling causes a stack-based buffer overflow when a filename length equals `MAX_FILE_NAME_LENGTH` (100). A crafted filename in the certificate directory can overflow `file_names[idx]`, corrupting stack state and enabling potential code execution. Version 2026.02.0 contains a patch.
How severe is CVE-2026-22593?: CVE-2026-22593 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-22593 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22593?: CVE-2026-22593 affects Linuxfoundation Everest. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22593?: 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-2026-22593 have an EU (EUVD) identifier?: Yes. CVE-2026-22593 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16173.
When was CVE-2026-22593 published?: CVE-2026-22593 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://github.com/EVerest/EVerest/security/advisories/GHSA-cpqf-mcqc-783m

Affected products (1)

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

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