CVE-2025-68132

EVerest is an EV charging software stack. Prior to version 2025.12.0, `is_message_crc_correct` in the DZG_GSH01 powermeter SLIP parser reads `vec[vec.size()-1]` and `vec[vec.size()-2]` without checking that at least two bytes are present. Malformed SLIP frames on the serial link can reach `is_message_crc_correct` with `vec.size() < 2` (only via the multi-message path), causing an out-of-bounds read before CRC verification and `pop_back` underflow. Therefore, an attacker controlling the serial input can reliably crash the process. Version 2025.12.0 fixes the issue.

CVSS v3 4.6 MEDIUM

4.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.9 / Impact : 3.6

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/EVerest/everest-core/commit/b8139b95144e3fe0082789b7fafe4e532ee494a1	Patch
https://github.com/EVerest/everest-core/security/advisories/GHSA-79gc-m8w6-9hx5	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-01-21 19:16

Updated : 2026-02-06 21:21

NVD link : CVE-2025-68132

Mitre link : CVE-2025-68132

CVE.ORG link : CVE-2025-68132

JSON object : View

Products Affected

linuxfoundation

everest

CWE

CWE-125

Out-of-bounds Read

{"id": "CVE-2025-68132", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.6, "attackVector": "PHYSICAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 0.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 2.4, "Automatable": "NOT_DEFINED", "attackVector": "PHYSICAL", "baseSeverity": "LOW", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-01-21T19:16:04.343", "references": [{"url": "https://github.com/EVerest/everest-core/commit/b8139b95144e3fe0082789b7fafe4e532ee494a1", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/EVerest/everest-core/security/advisories/GHSA-79gc-m8w6-9hx5", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "EVerest is an EV charging software stack. Prior to version 2025.12.0, `is_message_crc_correct` in the DZG_GSH01 powermeter SLIP parser reads `vec[vec.size()-1]` and `vec[vec.size()-2]` without checking that at least two bytes are present. Malformed SLIP frames on the serial link can reach `is_message_crc_correct` with `vec.size() < 2` (only via the multi-message path), causing an out-of-bounds read before CRC verification and `pop_back` underflow. Therefore, an attacker controlling the serial input can reliably crash the process. Version 2025.12.0 fixes the issue."}, {"lang": "es", "value": "EVerest es una pila de software de carga de veh\u00edculos el\u00e9ctricos. Antes de la versi\u00f3n 2025.12.0, `is_message_crc_correct` en el analizador SLIP del medidor de potencia DZG_GSH01 lee `vec[vec.size()-1]` y `vec[vec.size()-2]` sin verificar que al menos dos bytes est\u00e9n presentes. Tramas SLIP malformadas en el enlace serie pueden llegar a `is_message_crc_correct` con `vec.size() < 2` (solo a trav\u00e9s de la ruta de mensajes m\u00faltiples), causando una lectura fuera de l\u00edmites antes de la verificaci\u00f3n CRC y un desbordamiento negativo de `pop_back`. Por lo tanto, un atacante que controla la entrada serie puede bloquear el proceso de forma fiable. La versi\u00f3n 2025.12.0 corrige el problema."}], "lastModified": "2026-02-06T21:21:17.600", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linuxfoundation:everest:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "97BFA6C8-8D13-4BF3-A0FF-C786F54D9C22", "versionEndExcluding": "2025.12.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}