How severe is CVE-2022-34393?

CVE-2022-34393 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-34393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-34393?

CVE-2022-34393 primarily affects Dell G5 Se 5505 Firmware. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-34393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-34393 published?

CVE-2022-34393 was published on 2023-01-18 and last updated on 2026-06-17.

CVE-2022-34393

CVE-2022-34393 is a high-severity vulnerability in Dell G5 Se 5505 Firmware with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Dell G5 Se 5505 Firmware
Published: 2023-01-18
Last modified: 2026-06-17

Description

Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Frequently asked questions

What is CVE-2022-34393?: Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.
How severe is CVE-2022-34393?: CVE-2022-34393 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-34393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-34393?: CVE-2022-34393 primarily affects Dell G5 Se 5505 Firmware. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-34393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-34393 published?: CVE-2022-34393 was published on 2023-01-18 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000204686

Affected products (26)

cpe:2.3:o:dell:g5_se_5505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_27_7775_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3180_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3185_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3195_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3275_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3475_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3515_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3585_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3595_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3785_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5405_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5415_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5485_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5485_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5515_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5585_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7375_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7405_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7415_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_3405_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_3515_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_5415_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:vostro_5515_firmware:*:*:*:*:*:*:*:*

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