CVE-2023-25529
Published: 20 September 2023
Summary
CVE-2023-25529 is a high-severity Observable Timing Discrepancy (CWE-208) vulnerability in Nvidia Dgx H100 Firmware. Its CVSS base score is 8.0 (High).
Operationally, ranked in the top 46.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-29481
Vulnerability details
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…
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this vulnerability may lead to information disclosure, escalation of privileges, and data tampering.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.
Observable timing discrepancies are a primary mechanism for constructing covert timing channels; analysis identifies and bounds them, limiting exploitation.
Prevents attackers from using observable differences in error responses to infer internal system details or state.