TI-2020-04435 Aliases CVE-2020-5388 GHSA-mm45-c98x-rq98

Memory corruption in Dell CPG BIOS

LOW 30CWE-119Published 2020-11-10 · Updated 2024-09-16

Key facts

Attack vector: Physical
Privileges required: High
User interaction: None
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Dell Inspiron 15 7579 2-in-1 BIOS versions prior to 1.31.0 contain an Improper SMM communication buffer verification vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Why it matters now

EPSS 0.00273 19th percentileScored 2026-11-07

Fix Fixed CPG BIOS (Dell): 1.31.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Dell	CPG BIOS	before 1.31.0	1.31.0	Patch available	CNA

CPG BIOS VendorDell Affected before 1.31.0 Fixed in 1.31.0 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:dell:inspiron_15_7579_firmware::::::::	before 1.31.0	Vulnerable	Dell
cpe:2.3:h:dell:inspiron_15_7579:-:::::::*	not specified by NVD	Running on	Dell

cpe:2.3:o:dell:inspiron_15_7579_firmware:*:*:*:*:*:*:*:* Versions before 1.31.0 Vulnerable ·Dell
cpe:2.3:h:dell:inspiron_15_7579:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell

Remediation

Fix · CNA CPG BIOS (Dell) Fixed in 1.31.0

Timeline

2026-10-02 Threatist record created from CVE-2020-5388
2026-10-03 Alias added: GHSA-mm45-c98x-rq98

References

Advisory 1

https://www.dell.com/support/article/en-us/sln322869/dsa-2020-215-dell-inspiron-15-7579-2-in-1-improper-smm-communication-buffer-boundary-verification-vulnerability

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences