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CVE-2021-33627

גבוהה 8.2

תיאור (מקור, אנגלית)

An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.09.11, 5.1 before 05.17.11, 5.2 before 05.27.11, 5.3 before 05.36.11, 5.4 before 05.44.11, and 5.5 before 05.52.11 affecting FwBlockServiceSmm. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.

מדדים

CVSS 3.1
8.2 (HIGH) מקור הציון: NVD CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-14/10/2026
CWE
CWE-119

מוצרים מושפעים

insyde: insydeh2o; siemens: simatic field pg m5 firmware; siemens: simatic field pg m5; siemens: simatic field pg m6 firmware; siemens: simatic field pg m6; siemens: simatic ipc127e firmware; siemens: simatic ipc127e; siemens: simatic ipc227g firmware; siemens: simatic ipc227g; siemens: simatic ipc277g firmware; siemens: simatic ipc277g; siemens: simatic ipc327g firmware; siemens: simatic ipc327g; siemens: simatic ipc377g firmware; siemens: simatic ipc377g

קישורים