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

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.

Problem type

CWE-193: Off-by-one Error

Affected products

EVerest

everest-core

< 2026.02.0 - AFFECTED

References

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

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

x_refsource_CONFIRM

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-22593

Click to expand

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    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "dateUpdated": "2026-03-26T13:49:26.695Z",
    "dateReserved": "2026-01-07T21:50:39.532Z",
    "datePublished": "2026-03-26T13:49:26.695Z",
    "state": "PUBLISHED"
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        "shortName": "GitHub_M",
        "dateUpdated": "2026-03-26T13:49:26.695Z"
      },
      "title": "EVerest has off-by-one stack buffer overflow in IsoMux certificate filename parsing",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "affected": [
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          "versions": [
            {
              "version": "< 2026.02.0",
              "status": "affected"
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      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "description": "CWE-193: Off-by-one Error",
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              "type": "CWE"
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      "references": [
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          "url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-cpqf-mcqc-783m",
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            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
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            "integrityImpact": "HIGH",
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