CVE-2026-22593

EVerest has off-by-one stack buffer overflow in IsoMux certificate filename parsing

State: Published
Severity: 8.4 High
Published: Mar 26, 2026
Updated: Mar 28, 2026
Reserved: Jan 7, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-193 Off-by-one Error

Affected Products

Product	Versions
everest-coreEVerest	< 2026.02.0Affected

References

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

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