What’s Vulnerable › Vulnerabilities
CVE-2023-27373
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2023-08-07 · updated 2026-06-17
- Weakness: CWE-20
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.
Affected products
- Insydeh2O: 5.0, 5.1, 5.2, 5.3, 5.4, 5.5
References
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