CVEDB API

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-33626

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.001

EPSS Ranking 24.7%

CVSS Severity

CVSS v3 Score 7.8

CVSS v2 Score 4.6

References

Products affected by CVE-2021-33626

Siemens » Ruggedcom Apr1808 » Version: N/A

cpe:2.3:h:siemens:ruggedcom_apr1808:-
Siemens » Simatic Field Pg M5 » Version: N/A

cpe:2.3:h:siemens:simatic_field_pg_m5:-
Siemens » Simatic Field Pg M6 » Version: N/A

cpe:2.3:h:siemens:simatic_field_pg_m6:-
Siemens » Simatic Ipc127e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc127e:-
Siemens » Simatic Ipc227g » Version: N/A

cpe:2.3:h:siemens:simatic_ipc227g:-
Siemens » Simatic Ipc277g » Version: N/A

cpe:2.3:h:siemens:simatic_ipc277g:-
Siemens » Simatic Ipc327g » Version: N/A

cpe:2.3:h:siemens:simatic_ipc327g:-
Siemens » Simatic Ipc377g » Version: N/A

cpe:2.3:h:siemens:simatic_ipc377g:-
Siemens » Simatic Ipc427e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc427e:-
Siemens » Simatic Ipc477e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc477e:-
Siemens » Simatic Ipc477e Pro » Version: N/A

cpe:2.3:h:siemens:simatic_ipc477e_pro:-
Siemens » Simatic Ipc627e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc627e:-
Siemens » Simatic Ipc647e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc647e:-
Siemens » Simatic Ipc677e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc677e:-
Siemens » Simatic Ipc847e » Version: N/A

cpe:2.3:h:siemens:simatic_ipc847e:-
Siemens » Simatic Itp1000 » Version: N/A

cpe:2.3:h:siemens:simatic_itp1000:-
Insyde » Insydeh2o » Version: Any

cpe:2.3:o:insyde:insydeh2o:*
Siemens » Ruggedcom Apr1808 Firmware » Version: N/A

cpe:2.3:o:siemens:ruggedcom_apr1808_firmware:-
Siemens » Simatic Field Pg M5 Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-
Siemens » Simatic Field Pg M6 Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-
Siemens » Simatic Ipc127e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc127e_firmware:-
Siemens » Simatic Ipc227g Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc227g_firmware:-
Siemens » Simatic Ipc277g Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc277g_firmware:-
Siemens » Simatic Ipc327g Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc327g_firmware:-
Siemens » Simatic Ipc377g Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc377g_firmware:-
Siemens » Simatic Ipc427e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc427e_firmware:-
Siemens » Simatic Ipc477e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc477e_firmware:-
Siemens » Simatic Ipc477e Pro Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc477e_pro_firmware:-
Siemens » Simatic Ipc627e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc627e_firmware:-
Siemens » Simatic Ipc647e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc647e_firmware:-
Siemens » Simatic Ipc677e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc677e_firmware:-
Siemens » Simatic Ipc847e Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_ipc847e_firmware:-
Siemens » Simatic Itp1000 Firmware » Version: N/A

cpe:2.3:o:siemens:simatic_itp1000_firmware:-

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2021-33626

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