{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-4275", "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "state": "PUBLISHED", "assignerShortName": "Insyde", "dateReserved": "2025-05-05T01:59:27.834Z", "datePublished": "2025-06-11T00:25:17.737Z", "dateUpdated": "2025-08-14T05:58:07.245Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "platforms": ["kernel 5.2", "kernel 5.3", "kernel 5.4", "kernel 5.5", "kernel 5.6", "kernel 5.7"], "product": "InsydeH2O", "vendor": "Insyde Software", "versions": [{"lessThan": "05.2A.16", "status": "affected", "version": "Kernel 5.2", "versionType": "Tag"}, {"lessThan": "05.39.16", "status": "affected", "version": "Kernel 5.3", "versionType": "Tag"}, {"lessThan": "05.47.16", "status": "affected", "version": "Kernel 5.4", "versionType": "Tag"}, {"lessThan": "05.55.16", "status": "affected", "version": "Kernel 5.5", "versionType": "Tag"}, {"lessThan": "05.62.16", "status": "affected", "version": "Kernel 5.6", "versionType": "Tag"}, {"lessThan": "05.71.16", "status": "affected", "version": "Kernel 5.7", "versionType": "Tag"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Thanks to Nikolaj Schlej, independent firmware security researcher, for reporting the vulnerability and engaging in this coordinated disclosure."}], "datePublic": "2025-06-10T00:18:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(235, 235, 235);\">\n\n<span style=\"background-color: rgb(255, 255, 255);\">A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.</span>\n\n</span>"}], "value": "A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"description": "cwe-284: Improper Access Control", "lang": "en"}]}], "providerMetadata": {"orgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "shortName": "Insyde", "dateUpdated": "2025-08-14T05:58:07.245Z"}, "references": [{"url": "https://www.insyde.com/security-pledge/sa-2025002/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">kernel 5.2, Version 05.2A.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.3, Version 05.39.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.4, Version 05.47.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.5, Version 05.55.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.6, Version 05.62.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.7, Version 05.71.16</span>\n\n<br>"}], "value": "kernel 5.2, Version 05.2A.16\nkernel 5.3, Version 05.39.16\nkernel 5.4, Version 05.47.16\nkernel 5.5, Version 05.55.16\nkernel 5.6, Version 05.62.16\nkernel 5.7, Version 05.71.16"}], "source": {"discovery": "EXTERNAL"}, "title": "SecureFlashDxe: Incorrect UEFI variable attributes check allows usage of invalid certificate", "x_generator": {"engine": "Vulnogram 0.2.0"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/211341"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-06-11T01:32:11.159Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-06-11T13:38:13.231273Z", "id": "CVE-2025-4275", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-07-30T13:30:23.397Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.kb.cert.org/vuls/id/211341"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-06-11T01:32:11.159Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-4275", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-06-11T13:38:13.231273Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-06-11T13:38:34.200Z"}}], "cna": {"title": "SecureFlashDxe: Incorrect UEFI variable attributes check allows usage of invalid certificate", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "value": "Thanks to Nikolaj Schlej, independent firmware security researcher, for reporting the vulnerability and engaging in this coordinated disclosure."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Insyde Software", "product": "InsydeH2O", "versions": [{"status": "affected", "version": "Kernel 5.2", "lessThan": "05.2A.16", "versionType": "Tag"}, {"status": "affected", "version": "Kernel 5.3", "lessThan": "05.39.16", "versionType": "Tag"}, {"status": "affected", "version": "Kernel 5.4", "lessThan": "05.47.16", "versionType": "Tag"}, {"status": "affected", "version": "Kernel 5.5", "lessThan": "05.55.16", "versionType": "Tag"}, {"status": "affected", "version": "Kernel 5.6", "lessThan": "05.62.16", "versionType": "Tag"}, {"status": "affected", "version": "Kernel 5.7", "lessThan": "05.71.16", "versionType": "Tag"}], "platforms": ["kernel 5.2", "kernel 5.3", "kernel 5.4", "kernel 5.5", "kernel 5.6", "kernel 5.7"], "defaultStatus": "unknown"}], "solutions": [{"lang": "en", "value": "kernel 5.2, Version 05.2A.16\nkernel 5.3, Version 05.39.16\nkernel 5.4, Version 05.47.16\nkernel 5.5, Version 05.55.16\nkernel 5.6, Version 05.62.16\nkernel 5.7, Version 05.71.16", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">kernel 5.2, Version 05.2A.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.3, Version 05.39.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.4, Version 05.47.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.5, Version 05.55.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.6, Version 05.62.16</span><br><span style=\"background-color: rgb(255, 255, 255);\">kernel 5.7, Version 05.71.16</span>\n\n<br>", "base64": false}]}], "datePublic": "2025-06-10T00:18:00.000Z", "references": [{"url": "https://www.insyde.com/security-pledge/sa-2025002/"}], "x_generator": {"engine": "Vulnogram 0.2.0"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(235, 235, 235);\">\n\n<span style=\"background-color: rgb(255, 255, 255);\">A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot.</span>\n\n</span>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "cwe-284: Improper Access Control"}]}], "providerMetadata": {"orgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "shortName": "Insyde", "dateUpdated": "2025-08-14T05:58:07.245Z"}}}, "cveMetadata": {"cveId": "CVE-2025-4275", "state": "PUBLISHED", "dateUpdated": "2025-08-14T05:58:07.245Z", "dateReserved": "2025-05-05T01:59:27.834Z", "assignerOrgId": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "datePublished": "2025-06-11T00:25:17.737Z", "assignerShortName": "Insyde"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability in the digital signature verification process does not properly validate variable attributes which allows an attacker to bypass signature verification by creating a non-authenticated NVRAM variable. An attacker may to execute arbitrary signed UEFI code and bypass Secure Boot."}, {"lang": "es", "value": "Al ejecutar la utilidad proporcionada, se cambia el certificado en cualquier BIOS Insyde y luego se puede iniciar el archivo .efi adjunto."}], "id": "CVE-2025-4275", "lastModified": "2026-04-15T00:35:42.020", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.1, "impactScore": 6.0, "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "type": "Secondary"}]}, "published": "2025-06-11T01:15:20.750", "references": [{"source": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "url": "https://www.insyde.com/security-pledge/sa-2025002/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://www.kb.cert.org/vuls/id/211341"}], "sourceIdentifier": "8338d8cb-57f7-4252-abc0-96fd13e98d21", "vulnStatus": "Deferred"}

{}

{}