CVE-2022-34383

Arbitrary SMM code execution via crafted SMI

Published Aug 31, 2022 · Updated Sep 16, 2024

OS command injection in Dell Edge Gateway 5200 before 1.03.10 allows local users to execute arbitrary code in SMM via a crafted SMI. The firmware processes an SMI in a way that bypasses PMC mitigation, but Dell has not disclosed the affected handler or missing validation. Local high-privilege access is required, and successful exploitation executes attacker-controlled code in the isolated SMM context.

CVSS severity8.1
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Dell Edge Gateway 5200 before 1.03.10 allows local users to execute arbitrary code in SMM via a crafted SMI. The firmware processes an SMI in a way that bypasses PMC mitigation, but Dell has not disclosed the affected handler or missing validation. Local high-privilege access is required, and successful exploitation executes attacker-controlled code in the isolated SMM context.

The record

CVE
CVE-2022-34383
Published
Aug 31, 2022
Updated
Sep 16, 2024
Vendor
Dell
Product
Dell Edge Gateway 5200
Classifications
CWE-78, CWE-77, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 31, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <1.03.10

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell · Dell Edge Gateway 5200version=unspecified <1.03.10

Published CVSS scores

8.1DellCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
8.2NISTCVSS:3.1/AV:L/AC:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
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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