TI-2020-04428 Aliases CVE-2020-5378 GHSA-m7cj-ph5p-mg4w

Use after free in Dell CPG BIOS

LOW 30CWE-416Published 2020-09-02 · Updated 2024-09-17

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: Low
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-416 and the CVSS impact.

Summary

Dell G7 17 7790 BIOS versions prior to 1.13.2 contain a UEFI BIOS Boot Services overwrite vulnerability. A local attacker with access to system memory may exploit this vulnerability by overwriting the EFI_BOOT_SERVICES structure to execute arbitrary code in System Management Mode (SMM).

Why it matters now

EPSS 0.0039 33rd percentileScored 2026-11-07

Fix Fixed CPG BIOS (Dell): 1.13.0

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 1.13.0	1.13.0	Patch available	CNA

CPG BIOS VendorDell Affected before 1.13.0 Fixed in 1.13.0 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:dell:g7_17_7790_bios::::::::	before 1.13.2	Vulnerable	Dell
cpe:2.3:h:dell:g7_17_7790:-:::::::*	not specified by NVD	Running on	Dell

cpe:2.3:o:dell:g7_17_7790_bios:*:*:*:*:*:*:*:* Versions before 1.13.2 Vulnerable ·Dell
cpe:2.3:h:dell:g7_17_7790:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Dell

Remediation

Fix · CNA CPG BIOS (Dell) Fixed in 1.13.0

Timeline

2026-10-02 Threatist record created from CVE-2020-5378
2026-10-03 Alias added: GHSA-m7cj-ph5p-mg4w

References

Advisory 1

https://www.dell.com/support/article/SLN322616

Sources

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