Vulnerability · Published Sep 2, 2020 · Assigned by dell

CVE-2020-5376

Medium 6.8

In plain English

A medium-severity use-after-free in CPG BIOS from Dell. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)6.8Medium

Exploit odds (30 days)0.4%top 66.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Dell Inspiron 7347 BIOS versions prior to A13 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).

Affected products (as reported)

Vendor	Product	Versions
Dell	CPG BIOS	unspecified – before A13

Weakness: CWE-416 · Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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