CVE-2021-31837

Local code execution via driver-file buffer overflow

Published Jun 9, 2021 · Updated Aug 3, 2024

Memory corruption in McAfee GetSusp before 4.0.0 allows local users to execute arbitrary code by having GetSusp inspect a crafted program. The driver-file component writes beyond a buffer while processing the program under investigation. A low-privileged program must already run locally; successful exploitation executes code in GetSusp's context or crashes Windows with a BSOD.

CVSS severity7.8
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in McAfee GetSusp before 4.0.0 allows local users to execute arbitrary code by having GetSusp inspect a crafted program. The driver-file component writes beyond a buffer while processing the program under investigation. A low-privileged program must already run locally; successful exploitation executes code in GetSusp's context or crashes Windows with a BSOD.

The record

CVE
CVE-2021-31837
Published
Jun 9, 2021
Updated
Aug 3, 2024
Vendor
McAfee
Product
McAfee GetSusp
Classifications
CWE-787, T1203
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 9, 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=unspecified <4.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

McAfee · McAfee GetSuspversion=unspecified <4.0.0

Published CVSS scores

6.1NVDAV:L/AC:L/Au:N/C:P/I:P/A:C
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8TrellixCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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.

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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-787Out-of-bounds Write
T1203Exploitation for Client Execution

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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