CVE-2021-1074

Privilege escalation via post-validation resource replacement

Published Apr 21, 2021 · Updated Aug 3, 2024

Installer race in NVIDIA GPU Display Driver R390 before 392.65 allows local users to execute code by replacing a validated resource. The installer validates an application resource, leaves a brief replacement window, and then executes the resource without revalidating it. A local unprivileged user must win that race while a user with system administration rights runs the installer; successful replacement enables privileged code execution, information disclosure, or service interruption.

CVSS severity7.3
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Installer race in NVIDIA GPU Display Driver R390 before 392.65 allows local users to execute code by replacing a validated resource. The installer validates an application resource, leaves a brief replacement window, and then executes the resource without revalidating it. A local unprivileged user must win that race while a user with system administration rights runs the installer; successful replacement enables privileged code execution, information disclosure, or service interruption.

The record

CVE
CVE-2021-1074
Published
Apr 21, 2021
Updated
Aug 3, 2024
Vendor
NVIDIA
Product
NVIDIA GPU Display Driver
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 21, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=R390 driver branch

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NVIDIA · NVIDIA GPU Display Driverversion=R390 driver branch

Published CVSS scores

7.3NVIDIA CorporationCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
6.9NIST NVDAV:L/AC:M/Au:N/C:C/I:C/A:C

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

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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