CVE-2022-34376

Service interruption via manipulated SMI input

Published Feb 10, 2023 · Updated Mar 26, 2025

Improper input validation in Dell PowerEdge BIOS 14G and 15G allows local users to interrupt service by manipulating an SMI during SMM. Dell identifies faulty input validation during SMI handling but does not disclose the rejected field or exact validation operation. Exploitation requires high-privileged local access and can disrupt SMM execution, interrupting the server without reported data disclosure.

CVSS severity3.9
Low
EPSS probability0.14%
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 Dell PowerEdge BIOS 14G and 15G allows local users to interrupt service by manipulating an SMI during SMM. Dell identifies faulty input validation during SMI handling but does not disclose the rejected field or exact validation operation. Exploitation requires high-privileged local access and can disrupt SMM execution, interrupting the server without reported data disclosure.

The record

CVE
CVE-2022-34376
Published
Feb 10, 2023
Updated
Mar 26, 2025
Vendor
Dell
Product
Dell PowerEdge
Classifications
CWE-119, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 26, 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=14G,15G

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Dell PowerEdgeversion=14G,15G

Published CVSS scores

3.9DellCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L
5.5NIST NVDCVSS: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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