CVE-2023-20577

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with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "MendocinoPI-FT6 1.0.0.6"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 6000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7035 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "RembrandtPI-FP7 1.0.0.9b"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 5000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 3000 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "CezannePI-FP6 1.0.0.F"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7040 Series Processors with Radeon\u2122 Graphics", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "PhoenixPI-FP8-FP7 1.0.0.2"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 7045 Series Mobile Processors", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "DragonRangeFL1PI 1.0.0.3a"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 3000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "Snowyowl PI 1.1.0.B"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 7002", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbRomePI-SP3 1.0.0.B"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 7003", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbMilanPI-SP3 1.0.0.8"}]}, {"defaultStatus": "affected", "product": "AMD EPYC\u2122 Embedded 9003", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbGenoaPI-SP5 1.0.0.3"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded R1000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded R2000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.0.0.2"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded 5000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbAM4PI 1.0.0.4"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V1000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP5 1.2.0.A"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V2000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP6 1.0.0.9"}]}, {"defaultStatus": "affected", "product": "AMD Ryzen\u2122 Embedded V3000", "vendor": "AMD", "versions": [{"status": "unaffected", "version": "EmbeddedPI-FP7r2 1.0.0.8"}]}], "source": "psirt@amd.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution."}], "id": "CVE-2023-20577", "lastModified": "2026-09-04T20:17:20.570", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 5.9, "source": "psirt@amd.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-20577", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-03T03:56:43.507455Z", "version": "2.0.3"}}]}, "published": "2026-09-02T20:17:34.093", "references": [{"source": "psirt@amd.com", "url": "https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"}], "sourceIdentifier": "psirt@amd.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "psirt@amd.com", "type": "Secondary"}]}

{"bugzilla": {"description": "hw: amd: SPI flash RCE", "id": "2263392", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2263392"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-122", "details": ["A vulnerability was found in AMD hardware due to a heap overflow in the SMM module. This issue could allow a local unauthenticated attacker to enable writing to SPI flash to execute arbitrary code."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-20577", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "linux-firmware", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-20577\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-20577\nhttps://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html"], "statement": "In order to exploit this vulnerability, initial access must be gained via an additional vulnerability.\nThe PSP and AEGIS vulnerabilities necessitate a BIOS update, as they are not inherent to the CPU and cannot be addressed through CPU microcode updates. This requires a UEFI firmware update from the device vendor, distinct from updates in the linux-firmware package. Therefore, linux-firmware on Red Hat Enterprise Linux is marked as not affected.", "threat_severity": "Important"}

{}