CVSS 3.1
6.7 mediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2021-42059
Medium (6.7). EPSS 0.3% chance of exploitation in the next 30 days.
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
- CWE
- CWE-787
- Published
- Modified
- Record from
- the NVD, synced
Affected
- insyde:insydeh2o
- siemens:simatic_field_pg_m5_firmware
- siemens:simatic_field_pg_m6_firmware
- siemens:simatic_ipc127e_firmware
- siemens:simatic_ipc227g_firmware
- siemens:simatic_ipc277g_firmware
- siemens:simatic_ipc327g_firmware
- siemens:simatic_ipc377g_firmware
- siemens:simatic_ipc427e_firmware
- siemens:simatic_ipc477e_firmware
- siemens:simatic_ipc627e_firmware
- siemens:simatic_ipc647e_firmware
- siemens:simatic_ipc677e_firmware
- siemens:simatic_ipc847e_firmware
- siemens:simatic_itp1000_firmware