CVE-2022-34409

MEDIUM

6.7

CVSS Score

Published: March 16, 2023 at 11:26 AM UTC

Updated: June 17, 2026 at 04:50 AM UTC

161 products affected across 1 vendorDSS8440 FirmwareNX3330 FirmwareNX3230 Firmware

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious user with high Privileges may potentially exploit this vulnerability to perform arbitrary code execution or cause denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

C4130 Firmware · Dell

95%

v < 2.16.0

Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement

dell-c4130 (same device)

C4140 Firmware · Dell

95%

v < 2.16.1

Affected range stops below 2.16.1, so it looks safe — our inference, not a vendor statement

dell-c4140 (same device)

C6320 Firmware · Dell

95%

v < 2.16.0

Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement

dell-c6320 (same device)

C6420 Firmware · Dell

95%

v < 2.16.1

Affected range stops below 2.16.1, so it looks safe — our inference, not a vendor statement

dell-c6420 (same device)

C6520 Firmware · Dell

95%

v < 1.8.2

Affected range stops below 1.8.2, so it looks safe — our inference, not a vendor statement

dell-c6520 (same device)

C6525 Firmware · Dell

95%

All versions

dell-c6525 (same device)

DSS8440 Firmware · Dell

95%

v < 2.16.1

Affected range stops below 2.16.1, so it looks safe — our inference, not a vendor statement

dell-dss8440 (same device)

FC430 Firmware · Dell

95%

v < 2.16.0

Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement

dell-fc430 (same device)

FC630 Firmware · Dell

95%

v < 2.16.0

Affected range stops below 2.16.0, so it looks safe — our inference, not a vendor statement

dell-fc630 (same device)

FC640 Firmware · Dell

95%

v < 2.16.1

Affected range stops below 2.16.1, so it looks safe — our inference, not a vendor statement

dell-fc640 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.dell.com/support/kbdoc/en-us/000206296/dsa-2022-204-dell-poweredge-improper-smm-communication-buffer-verification-vulnerability

References (1)

Vendor AdvisoryPatch

Source: [email protected]

https://www.dell.com/support/kbdoc/en-us/000206296/dsa-2022-204-dell-poweredge-improper-smm-communication-buffer-verification-vulnerability

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.7MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-119

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