How severe is CVE-2022-34403?

CVE-2022-34403 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-2022-34403 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-34403?

CVE-2022-34403 primarily affects Dell Alienware M15 R6 Firmware. In total, 83 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-34403?

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-2022-34403 published?

CVE-2022-34403 was published on 2023-02-01 and last updated on 2026-06-17.

CVE-2022-34403

CVE-2022-34403 is a high-severity vulnerability in Dell Alienware M15 R6 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Dell Alienware M15 R6 Firmware
Published: 2023-02-01
Last modified: 2026-06-17

Description

Dell BIOS contains a Stack based buffer overflow vulnerability. A local authenticated attacker could potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter to gain arbitrary code execution in SMRAM.

Frequently asked questions

What is CVE-2022-34403?: Dell BIOS contains a Stack based buffer overflow vulnerability. A local authenticated attacker could potentially exploit this vulnerability by using an SMI to send larger than expected input to a parameter to gain arbitrary code execution in SMRAM.
How severe is CVE-2022-34403?: CVE-2022-34403 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-2022-34403 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-34403?: CVE-2022-34403 primarily affects Dell Alienware M15 R6 Firmware. In total, 83 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-34403?: 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-2022-34403 published?: CVE-2022-34403 was published on 2023-02-01 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000205716

Affected products (83)

cpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:alienware_m15_r7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:alienware_m15_ryzen_edition_r5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:alienware_m17_r5_amd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5511_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5515_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5525_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_se_5505_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_14_5410_2-in-1_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_3511_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_3525_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_3891_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5310_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5405_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5410_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5415_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5425_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_5510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5515_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_5585_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:inspiron_7425_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_7610_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:latitude_3320_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:latitude_3420_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:latitude_3520_firmware:*:*:*:*:*:*:*:*

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