CVE-2022-34416

Arbitrary SMM code execution via unchecked buffer

Published Mar 16, 2023 · Updated Feb 26, 2025

Improper buffer validation in Dell PowerEdge BIOS 14G and 15G allows local users with high privileges to execute code or crash the system. The BIOS does not verify that an SMM communication buffer stays within permitted memory bounds before operating on its contents. High privileges and a local execution path are required; successful exploitation can run code in SMM or interrupt service.

CVSS severity7.5
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper buffer validation in Dell PowerEdge BIOS 14G and 15G allows local users with high privileges to execute code or crash the system. The BIOS does not verify that an SMM communication buffer stays within permitted memory bounds before operating on its contents. High privileges and a local execution path are required; successful exploitation can run code in SMM or interrupt service.

The record

CVE
CVE-2022-34416
Published
Mar 16, 2023
Updated
Feb 26, 2025
Vendor
Dell
Product
Dell PowerEdge
Classifications
CWE-119, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 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

7.5DellCVSS:3.1/AV:L/AC:H/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
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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