CVE-2026-22790

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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, `HomeplugMessage::setup_payload` trusts `len` after an `assert`; in release builds the check is removed, so oversized SLAC payloads are `memcpy`'d into a ~1497-byte stack buffer, corrupting the stack and enabling remote code execution from network-provided frames. Version 2026.02.0 contains a patch."}, {"lang": "es", "value": "EVerest es una pila de software de carga de veh\u00edculos el\u00e9ctricos. Antes de la versi\u00f3n 2026.02.0, 'HomeplugMessage::setup_payload' conf\u00eda en 'len' despu\u00e9s de un 'assert'; en las compilaciones de lanzamiento la verificaci\u00f3n se elimina, por lo que las cargas \u00fatiles SLAC sobredimensionadas son 'memcpy'eadas en un b\u00fafer de pila de ~1497 bytes, corrompiendo la pila y permitiendo la ejecuci\u00f3n remota de c\u00f3digo desde tramas proporcionadas por la red. La versi\u00f3n 2026.02.0 contiene un parche."}], "id": "CVE-2026-22790", "lastModified": "2026-06-17T10:20:25.977", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22790", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-03-26T15:19:32.904960Z", "version": "2.0.3"}}]}, "published": "2026-03-26T15:16:31.970", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/EVerest/EVerest/security/advisories/GHSA-wh8w-7cfc-gq7m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2026.02.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "everest-core", "source": "cna", "vendor": "EVerest"}, "product": "everest-core", "vendor": "everest"}], "analysis": {"en": {"generated_at": "2026-03-31T15:38:53.160459+00:00", "value": {"mitigation_remediation": ["Upgrade to version 2026.02.0 or newer", "If upgrading is not immediately possible, block or filter network traffic with oversized SLAC frames to prevent exploitation"], "summary": {"action": "Immediate Patch", "impact": "Remote Code Execution"}, "threat_synthesis": {"affected_systems": "The affected component is EVerest\u2019s everest\u2011core module, specifically any deployment using a version older than 2026.02.0. Systems running these versions are vulnerable regardless of other configuration settings.", "description_and_impact": "The vulnerability arises from an unchecked length check for SLAC payloads in the HomeplugMessage::setup_payload function within the EVerest EV charging software stack. Because the length assertion is removed in release builds, large payloads are copied into a 1497\u2011byte stack buffer, causing a stack overflow that can be exploited via a crafted network frame to achieve remote code execution on the host system.", "risk_and_exploitability": "The CVSS score of 8.8 indicates high severity, while the EPSS score below 1% suggests a low current probability of exploitation. The vulnerability is not listed in CISA\u2019s KEV catalog. Attacks would require sending a specially crafted network frame containing an oversized SLAC payload, a scenario plausible in uncontrolled network environments."}}}}, "created": "2026-03-27T08:34:08.643483+00:00", "updated": "2026-03-31T20:09:02.883381+00:00", "vendors": ["everest", "everest$PRODUCT$everest-core"]}