CVE-2021-1097

Host data disclosure and tampering via length mismatch

Published Jul 21, 2021 · Updated Aug 3, 2024

Improper input validation in NVIDIA vGPU Software 8.x before 8.8, 11.x before 11.5, and 12.x before 12.3 allows guest OS users to disrupt hosts. The Virtual GPU Manager trusts a guest request length field that does not match the actual input length, causing unsafe processing of the malformed request. Access to a configured vGPU guest is required; consequences include host information disclosure, data tampering, or denial of service.

CVSS severity7.8
High
EPSS probability0.25%
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 vGPU Software 8.x before 8.8, 11.x before 11.5, and 12.x before 12.3 allows guest OS users to disrupt hosts. The Virtual GPU Manager trusts a guest request length field that does not match the actual input length, causing unsafe processing of the malformed request. Access to a configured vGPU guest is required; consequences include host information disclosure, data tampering, or denial of service.

The record

CVE
CVE-2021-1097
Published
Jul 21, 2021
Updated
Aug 3, 2024
Vendor
NVIDIA
Product
NVIDIA vGPU Software
Classifications
CWE-20, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 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=vGPU version 12.x (prior to 12.3), version 11.x (prior to 11.5) and version 8.x (prior 8.8).

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

NVIDIA · NVIDIA vGPU Softwareversion=vGPU version 12.x (prior to 12.3), version 11.x (prior to 11.5) and version 8.x (prior 8.8).

Published CVSS scores

7.8NVIDIACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 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

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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