Lenovo Thinkcentre m920z All-In-One Firmware vulnerabilities

20 CVEs affecting Lenovo Thinkcentre m920z All-In-One Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2023-45079, published 2023-11-08.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2023-43571, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the BiosExtensionLoader module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-45076, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A memory leakage vulnerability was reported in the 534D0140 DXE driver that may allow a local attacker with elevated privileges to write to NVRAM variables.
• CVE-2023-45075, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A memory leakage vulnerability was reported in the SWSMI_Shadow DXE driver that may allow a local attacker with elevated privileges to write to NVRAM variables.
• CVE-2023-43570, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A potential vulnerability was reported in the SMI callback function of the OemSmi driver that may allow a local attacker with elevated permissions to execute arbitrary code.
• CVE-2023-43581, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the Update_WMI module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-43580, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the SmuV11DxeVMR module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-43579, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the SmuV11Dxe driver in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-43578, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the SmiFlash module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-43577, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the ReFlash module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.
• CVE-2023-43576, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A buffer overflow was reported in the WMISwSmi module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to execute arbitrary code.

Latest

• CVE-2023-45079, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A memory leakage vulnerability was reported in the NvmramSmm SMM driver that may allow a local attacker with elevated privileges to write to NVRAM variables.
• CVE-2023-45078, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A memory leakage vulnerability was reported in the DustFilterAlertSmm SMM driver that may allow a local attacker with elevated privileges to write to NVRAM variables.
• CVE-2023-45077, published 2023-11-08. Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days. A memory leakage vulnerability was reported in the 534D0740 DXE driver that may allow a local attacker with elevated privileges to write to NVRAM variables.