An issue was discovered in FvbServicesRuntimeDxe in Insyde InsydeH2O with kernel 5.0…
Priority LOW 28CWE-863Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.
Summary
An issue was discovered in FvbServicesRuntimeDxe in Insyde InsydeH2O with kernel 5.0 through 5.5. The FvbServicesRuntimeDxe SMM module exposes an SMI handler that allows an attacker to interact with the SPI flash at run-time from the OS.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00155 4th 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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* | 5.0 – 5.5 | Vulnerable | Insyde Software |
- cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* Versions 5.0 – 5.5 Vulnerable ·Insyde Software
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28468
- 2026-10-03 Alias added: GHSA-564w-j7mv-2v7q
References
More Insyde Software Kernel vulnerabilities
- TI-2021-16172 Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. CVSS 3.1CRITICAL 9.8
- TI-2021-16170 NetworkPkg/IScsiDxe has remotely exploitable buffer overflows. CVSS 3.1HIGH 8.1
- TI-2024-32800 An issue was discovered in AcpiS3SaveDxe and ChipsetSvcDxe in Insyde InsydeH2O with… CVSS 3.1MEDIUM 6.4
- TI-2022-16680 An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. CVSS 3.1HIGH 8.2
- TI-2022-11814 Use of a untrusted pointer allows tampering with SMRAM and OS memory in SdHostDriver and… CVSS 3.1HIGH 8.2
- TI-2022-11813 Incorrect pointer checks within the NvmExpressDxe driver can allow tampering with SMRAM… CVSS 3.1HIGH 8.2
Sources
- CVE-2023-28468 · CVE Program
- CVE-2023-28468 · NVD
- FIRST EPSS
- GHSA-564w-j7mv-2v7q · 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