CVE-2026-22593

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{"affected": [{"affectedData": [{"product": "everest-core", "vendor": "EVerest", "versions": [{"status": "affected", "version": "< 2026.02.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*", "matchCriteriaId": "EB167E67-6808-4F7B-9505-FFF0C02B288C", "versionEndExcluding": "2026.02.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}, {"lang": "es", "value": "EVerest es una pila de software de carga de VE. Antes de la versi\u00f3n 2026.02.0, una comprobaci\u00f3n de off-by-one en el manejo de nombres de archivo de certificados IsoMux causa un desbordamiento de b\u00fafer basado en pila cuando la longitud de un nombre de archivo es igual a 'MAX_FILE_NAME_LENGTH' (100). Un nombre de archivo manipulado en el directorio de certificados puede desbordar 'file_names[idx]', corrompiendo el estado de la pila y permitiendo la posible ejecuci\u00f3n de c\u00f3digo. La versi\u00f3n 2026.02.0 contiene un parche."}], "id": "CVE-2026-22593", "lastModified": "2026-06-17T10:20:07.653", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22593", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-28T02:20:26.361940Z", "version": "2.0.3"}}]}, "published": "2026-03-26T15:16:31.800", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-cpqf-mcqc-783m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-193"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2026.02.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "everest-core", "source": "cna", "vendor": "EVerest"}, "product": "everest-core", "vendor": "everest"}], "analysis": {"en": {"generated_at": "2026-03-31T16:08:13.240024+00:00", "value": {"mitigation_remediation": ["Update EVerest everest-core to version 2026.02.0 or a later release"], "summary": {"action": "Patch Immediately", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the EVerest everest-core component in any release prior to 2026.02.0. Devices running this software on Linux, such as EV charging stations that use the everest-core stack, are susceptible because the flaw is present in the default certificate directory handling.", "description_and_impact": "EVerest is a software stack for electric vehicle charging. An off\u2011by\u2011one logic error in the IsoMux certificate filename parser allows a stack\u2011based buffer overflow when a certificate file name reaches the maximum allowed length of 100 characters. The overflow corrupts a stack variable named file_names[idx] and can overwrite nearby control flow data, giving an attacker the potential to execute arbitrary code on the affected device.", "risk_and_exploitability": "The CVSS score of 8.4 indicates high severity, while the EPSS score of less than 1% shows a low current exploitation probability. The issue is not listed in CISA\u2019s KEV catalog. The likely exploitation path involves an attacker placing a specially crafted certificate file whose name is exactly 100 characters long in the certificate directory. This requires file system access\u2014usually local\u2014but could be achieved remotely if the device allows writing files to that directory. Once the file is in place, launching the EVerest stack can trigger the overflow, leading to code execution. Because the flaw is not yet widely exploited, current risk is moderate to high, but the impact of successful exploitation would be total compromise of the charging station."}}}}, "created": "2026-03-27T08:34:13.168983+00:00", "updated": "2026-03-31T20:09:05.757405+00:00", "vendors": ["everest", "everest$PRODUCT$everest-core"]}