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CVSS: 8.8EPSS: 0%CPEs: 5EXPL: 1

20 Sep 2022 — An attacker can exploit this vulnerability to elevate privileges from ring 0 to ring -2, execute arbitrary code in System Management Mode - an environment more privileged than operating system (OS) and completely isolated from it. Running arbitrary code in SMM additionally bypasses SMM-based SPI flash protections against modifications, which can help an attacker to install a firmware backdoor/implant into BIOS. Such a malicious firmware code in BIOS could persist across operating system re-installs. Additio... • https://www.ami.com/security-center • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 7.2EPSS: 0%CPEs: 4EXPL: 1

20 Sep 2022 — A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: SbPei SHA256: ... • https://www.ami.com/security-center • CWE-123: Write-what-where Condition CWE-787: Out-of-bounds Write •

CVSS: 8.2EPSS: 0%CPEs: 5EXPL: 1

20 Sep 2022 — A potential attacker can execute an arbitrary code at the time of the PEI phase and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: PlatformInitAdvancedPreMem SHA256: 644044fdb8daea30a7820e0... • https://www.ami.com/security-center • CWE-121: Stack-based Buffer Overflow CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 0%CPEs: 206EXPL: 0

17 Nov 2021 — Out-of-bounds write in firmware for some Intel(R) NUCs may allow an authenticated user to potentially enable denial of service via local access. Una escritura fuera de límites en el firmware para algunos NUC de Intel(R) puede permitir a un usuario autenticado habilitar potencialmente una denegación de servicio por medio de un acceso local • https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00567.html • CWE-787: Out-of-bounds Write •

CVSS: 6.7EPSS: 0%CPEs: 154EXPL: 0

09 Jun 2021 — Improper buffer restrictions in system firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege via local access. Unas restricciones de búfer inapropiadas en el firmware del sistema para algunos NUC de Intel® pueden permitir a un usuario privilegiado permitir potencialmente una escalada de privilegios por medio de un acceso local • https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00511.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 6.7EPSS: 0%CPEs: 154EXPL: 0

09 Jun 2021 —  Improper access control in system firmware for some Intel(R) NUCs may allow a privileged user to potentially enable escalation of privilege via local access. Un control de acceso inapropiado en el firmware del sistema para algunos NUC de Intel® puede habilitar a un usuario privilegiado para permitir potencialmente una escalada de privilegios por medio de un acceso local • https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00511.html •