{"api_version":"1","generated_at":"2026-04-23T05:59:16+00:00","cve":"CVE-2023-26246","urls":{"html":"https://cve.report/CVE-2023-26246","api":"https://cve.report/api/cve/CVE-2023-26246.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-26246","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-26246"},"summary":{"title":"CVE-2023-26246","description":"An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system.","state":"PUBLISHED","assigner":"mitre","published_at":"2023-04-27 01:15:08","updated_at":"2026-04-06 14:30:05"},"problem_types":["CWE-269","CWE-863","n/a","CWE-863 CWE-863 Incorrect Authorization"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"ADP","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"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"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}}],"references":[{"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera","name":"https://sowhat.iit.cnr.it:8443/can-work/chimaera","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"title":"Can Work / CHIMAERA · GitLab","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://sowhat.iit.cnr.it","name":"https://sowhat.iit.cnr.it","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Not Applicable"],"title":"sowhat | Security Of the Way to Handle Automotive sysTems","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf","name":"https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"title":"Report/IIT-01-2023.pdf · main · Can Work / CHIMAERA · GitLab","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-26246","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26246","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2023","cve_id":"26246","vulnerable":"0","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"h","cpe4":"hyundai","cpe5":"gen5w_l_in-vehicle_infotainment_system","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"26246","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"hyundai","cpe5":"gen5w_l_in-vehicle_infotainment_system_firmware","cpe6":"5w.xxx.s5w_l.001.001.221129","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2023","cve_id":"26246","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"hyundai","cpe5":"gen5w_l_in-vehicle_infotainment_system_firmware","cpe6":"ae_e_pe_eur.s5w_l001.001.211214","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"26246","cve":"CVE-2023-26246","epss":"0.000100000","percentile":"0.011780000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-02T11:46:24.088Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_transferred"],"url":"https://sowhat.iit.cnr.it"},{"tags":["x_transferred"],"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf"},{"tags":["x_transferred"],"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"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"}},{"other":{"content":{"id":"CVE-2023-26246","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2025-01-31T18:56:16.387857Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","description":"CWE-863 Incorrect Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2025-01-31T18:56:20.737Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"descriptions":[{"lang":"en","value":"An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2023-04-27T00:00:00.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"url":"https://sowhat.iit.cnr.it"},{"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera/-/blob/main/Report/IIT-01-2023.pdf"},{"url":"https://sowhat.iit.cnr.it:8443/can-work/chimaera"}]}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2023-26246","datePublished":"2023-04-27T00:00:00.000Z","dateReserved":"2023-02-21T00:00:00.000Z","dateUpdated":"2025-01-31T18:56:20.737Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2023-04-27 01:15:08","lastModifiedDate":"2026-04-06 14:30:05","problem_types":["CWE-269","CWE-863","n/a","CWE-863 CWE-863 Incorrect Authorization"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:hyundai:gen5w_l_in-vehicle_infotainment_system_firmware:5w.xxx.s5w_l.001.001.221129:*:*:*:*:*:*:*","matchCriteriaId":"0B1D75CC-4D29-4918-BBE4-84316697F0C0"},{"vulnerable":true,"criteria":"cpe:2.3:o:hyundai:gen5w_l_in-vehicle_infotainment_system_firmware:ae_e_pe_eur.s5w_l001.001.211214:*:*:*:*:*:*:*","matchCriteriaId":"E140A27C-DEAE-4DAA-9E91-448A32B1D055"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:hyundai:gen5w_l_in-vehicle_infotainment_system:-:*:*:*:*:*:*:*","matchCriteriaId":"875AC44B-6F21-4286-A29A-9E72EFB0F3F3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"26246","Ordinal":"1","Title":"CVE-2023-26246","CVE":"CVE-2023-26246","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"26246","Ordinal":"1","NoteData":"An issue was discovered in the Hyundai Gen5W_L in-vehicle infotainment system AE_E_PE_EUR.S5W_L001.001.211214. The AppUpgrade binary file, which is used during the firmware installation process, can be modified by an attacker to bypass the digital signature check. This indirectly allows an attacker to install custom firmware in the IVI system.","Type":"Description","Title":"CVE-2023-26246"}]}}}