CVE-2025-33237

Local denial of service via NULL dereference

Published Jan 28, 2026 · Updated Jan 28, 2026

NULL pointer dereference in NVIDIA HD Audio Driver before 1.4.5.7 allows local users to interrupt service on Windows systems. NVIDIA has not disclosed which driver routine dereferences the null pointer or what local input reaches that operation. Low-privileged local access is required, and the documented consequence is limited to denial of service without reported data exposure or code execution.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in NVIDIA HD Audio Driver before 1.4.5.7 allows local users to interrupt service on Windows systems. NVIDIA has not disclosed which driver routine dereferences the null pointer or what local input reaches that operation. Low-privileged local access is required, and the documented consequence is limited to denial of service without reported data exposure or code execution.

The record

CVE
CVE-2025-33237
Published
Jan 28, 2026
Updated
Jan 28, 2026
Vendor
DPDK Project
Product
NVIDIA RTX/Quadro/NVS Driver
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 2026Record 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 driver versions prior to 1.4.5.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

DPDK Project · NVIDIA RTX/Quadro/NVS Driverversion=All driver versions prior to 1.4.5.7
DPDK Project · NVIDIA GeForce Driverversion=All driver versions prior to 1.4.5.7

Published CVSS scores

5.5NVIDIA CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Endpoint Denial of Service: Application or System Exploitation

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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