Observable discrepancy in NVIDIA DGX H100 BMC
Priority LOW 36CWE-208Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-208.
Summary
NVIDIA DGX H100 BMC and DGX A100 BMC contains a vulnerability in the host KVM daemon, where an unauthenticated attacker may cause a leak of another user’s session token by observing timing discrepancies between server responses. A successful exploit of this vulnerability may lead to information disclosure, escalation of privileges, and data tampering.
Why it matters now
EPSS 0.00625 50th percentileScored 2026-11-07
Fix Fixed DGX H100 BMC (NVIDIA): 23.08.07DGX A100 BMC (NVIDIA): 00.22.05
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NVIDIA | DGX H100 BMC | before 23.08.07 | 23.08.07 | Patch available | CNA |
| NVIDIA | DGX A100 BMC | before 00.22.05 | 00.22.05 | Patch available | CNA |
Remediation
- Fix · CNA DGX H100 BMC (NVIDIA) Fixed in 23.08.07
- Fix · CNA DGX A100 BMC (NVIDIA) Fixed in 00.22.05
Timeline
- 2026-10-02 Threatist record created from CVE-2023-25529
- 2026-10-03 Alias added: GHSA-v8jc-h92c-w33g
- 2026-11-03 EPSS moved to the 50th–90th percentile
References
More NVIDIA Dgx H100 Firmware vulnerabilities
- TI-2023-10838 Improper input validation in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
- TI-2023-10835 Improper input validation in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
- TI-2023-10833 Stack-based buffer overflow in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
- TI-2023-14746 Improper input validation in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
- TI-2023-10839 Improper input validation in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
- TI-2023-10836 Insufficiently protected credentials in NVIDIA DGX H100 BMC CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-25529 · CVE Program
- CVE-2023-25529 · NVD
- FIRST EPSS
- GHSA-v8jc-h92c-w33g · GitHub Advisory Database · CC BY 4.0
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