An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5.
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. UEFI implementations do not correctly protect and validate information contained in the 'MeSetup' UEFI variable. On some systems, this variable can be overwritten using operating system APIs. Exploitation of this vulnerability could potentially lead to denial of service for the platform.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00171 6th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:insyde:insydeh2o:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Insyde Software |
| cpe:2.3:a:insyde:insydeh2o:5.1:*:*:*:*:*:*:* | 5.1 | Vulnerable | Insyde Software |
| cpe:2.3:a:insyde:insydeh2o:5.2:*:*:*:*:*:*:* | 5.2 | Vulnerable | Insyde Software |
| cpe:2.3:a:insyde:insydeh2o:5.3:*:*:*:*:*:*:* | 5.3 | Vulnerable | Insyde Software |
| cpe:2.3:a:insyde:insydeh2o:5.4:*:*:*:*:*:*:* | 5.4 | Vulnerable | Insyde Software |
| cpe:2.3:a:insyde:insydeh2o:5.5:*:*:*:*:*:*:* | 5.5 | Vulnerable | Insyde Software |
- cpe:2.3:a:insyde:insydeh2o:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Insyde Software
- cpe:2.3:a:insyde:insydeh2o:5.1:*:*:*:*:*:*:* Versions 5.1 Vulnerable ·Insyde Software
- cpe:2.3:a:insyde:insydeh2o:5.2:*:*:*:*:*:*:* Versions 5.2 Vulnerable ·Insyde Software
- cpe:2.3:a:insyde:insydeh2o:5.3:*:*:*:*:*:*:* Versions 5.3 Vulnerable ·Insyde Software
- cpe:2.3:a:insyde:insydeh2o:5.4:*:*:*:*:*:*:* Versions 5.4 Vulnerable ·Insyde Software
- cpe:2.3:a:insyde:insydeh2o:5.5:*:*:*:*:*:*:* Versions 5.5 Vulnerable ·Insyde Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-27471
- 2026-10-03 Alias added: GHSA-8fq9-hpp7-6h47
References
More Insyde Software Insydeh2o vulnerabilities
- TI-2023-08797 An issue was discovered in ChipsetSvcSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.8
- TI-2022-16772 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
- TI-2022-16681 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
- TI-2022-16323 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
- TI-2022-15984 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
- TI-2023-08799 An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. CVSS 3.1HIGH 7.8
Sources
- CVE-2023-27471 · CVE Program
- CVE-2023-27471 · NVD
- FIRST EPSS
- GHSA-8fq9-hpp7-6h47 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences