Micro-Star International Z-series motherboards (Z590, Z490, and Z790) and B-series…
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Micro-Star International Z-series motherboards (Z590, Z490, and Z790) and B-series motherboards (B760, B560, B660, and B460) with firmware 7D25v14, 7D25v17 to 7D25v19, and 7D25v1A to 7D25v1H was discovered to contain a write-what-where condition in the in the SW handler for SMI 0xE3. Motherboard's with the following chipsets are affected: Intel 300, Intel 400, Intel 500, Intel 600, Intel 700, AMD 300, AMD 400, AMD 500, AMD 600 and AMD 700.
Why it matters now
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 names CISA-ADP · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:msi:intel_300:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:intel_400:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:intel_500:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:intel_600:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:intel_700:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:am4:*:*:*:*:*:*:*:* | — | — | MSI |
| cpe:2.3:o:msi:am5:*:*:*:*:*:*:*:* | — | — | MSI |
- cpe:2.3:o:msi:intel_300:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:intel_400:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:intel_500:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:intel_600:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:intel_700:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:am4:*:*:*:*:*:*:*:* Versions — — ·MSI
- cpe:2.3:o:msi:am5:*:*:*:*:*:*:*:* Versions — — ·MSI
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-36877
- 2026-10-03 Alias added: GHSA-7j43-4jvq-vg4w
References
Sources
- CVE-2024-36877 · CVE Program
- CVE-2024-36877 · NVD
- FIRST EPSS
- GHSA-7j43-4jvq-vg4w · GitHub Advisory Database · CC BY 4.0
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