VULNERABILITY INTELLIGENCE

CVE-2023-27373

CVSS score5.5 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2023-08-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Description

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.

Weakness classification

  • nvd@nist.gov: CWE-20
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-20

Primary references