An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5.
Priority HIGH 71CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. The FwBlockSericceSmm driver does not properly validate input parameters for a software SMI routine, leading to memory corruption of arbitrary addresses including SMRAM, and possible arbitrary code execution.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00378 31st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* | 5.0 to before 05.09.37; 5.1 to before 05.17.37; 5.2 to before 05.27.29; 5.3 to before 05.36.29; 5.4 to before 05.44.29; 5.5 to before 05.52.29 | Vulnerable | Insyde Software |
- cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* Versions 5.0 to before 05.09.37; 5.1 to before 05.17.37; 5.2 to before 05.27.29; 5.3 to before 05.36.29; 5.4 to before 05.44.29; 5.5 to before 05.52.29 Vulnerable ·Insyde Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-35895
- 2026-10-03 Alias added: GHSA-mm42-46m4-7pp9
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-2022-15984 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
- TI-2022-16324 An issue SMM memory leak vulnerability in SMM driver (SMRAM was discovered in Insyde… CVSS 3.1MEDIUM 6.0
Sources
- CVE-2022-35895 · CVE Program
- CVE-2022-35895 · NVD
- FIRST EPSS
- GHSA-mm42-46m4-7pp9 · GitHub Advisory Database · CC BY 4.0
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