How severe is CVE-2020-5376?

CVE-2020-5376 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5376?

CVE-2020-5376 affects Dell Inspiron 7347 Bios. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5376?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-5376 published?

CVE-2020-5376 was published on 2020-09-02 and last updated on 2026-06-17.

CVE-2020-5376

CVE-2020-5376 is a medium-severity vulnerability in Dell Inspiron 7347 Bios with a CVSS 3.x base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Dell Inspiron 7347 Bios
Published: 2020-09-02
Last modified: 2026-06-17

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).

Frequently asked questions

What is CVE-2020-5376?: 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).
How severe is CVE-2020-5376?: CVE-2020-5376 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5376?: CVE-2020-5376 affects Dell Inspiron 7347 Bios. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-5376 published?: CVE-2020-5376 was published on 2020-09-02 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:o:dell:inspiron_7347_bios:*:*:*:*:*:*:*:*

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