CVE-2025-33191

Local denial of service via invalid memory read

Published Nov 25, 2025 · Updated Nov 25, 2025

Improper input validation in NVIDIA DGX Spark OSROOT firmware before OTA0 allows local users to cause a denial of service. OSROOT firmware performs an invalid memory read after failing to validate attacker-controlled input; NVIDIA does not identify the specific interface or routine. Local access is required without privileges or user interaction; NVIDIA reports no impact beyond denial of service but does not identify the interruption mode.

CVSS severity5.7
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in NVIDIA DGX Spark OSROOT firmware before OTA0 allows local users to cause a denial of service. OSROOT firmware performs an invalid memory read after failing to validate attacker-controlled input; NVIDIA does not identify the specific interface or routine. Local access is required without privileges or user interaction; NVIDIA reports no impact beyond denial of service but does not identify the interruption mode.

The record

CVE
CVE-2025-33191
Published
Nov 25, 2025
Updated
Nov 25, 2025
Vendor
DPDK Project
Product
DGX Spark
Classifications
CWE-20, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to OTA0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

DPDK Project · DGX Sparkversion=All versions prior to OTA0

Published CVSS scores

5.7NVIDIACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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