CVEvulnerability

CVE-2021-42554

8.2 HIGH Published 2022-02-03 Modified 2026-08-11 Official page ↗
Status
Modified
Published
2022-02-03
Last modified
2026-08-11
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.2 HIGH — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-787

Description

An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Affected configurations

• insyde insydeh2o (>= 5.0 < 5.08.42) • insyde insydeh2o (>= 5.1 < 5.16.42) • insyde insydeh2o (>= 5.2 < 5.26.42) • insyde insydeh2o (>= 5.3 < 5.35.42) • insyde insydeh2o (>= 5.4 < 5.42.51) • insyde insydeh2o (>= 5.5 < 5.50.51) • 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 • siemens ruggedcom ape1808 firmware

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References