How severe is CVE-2022-26858?

CVE-2022-26858 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2022-26858 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-2022-26858?

CVE-2022-26858 primarily affects Dell Alienware M15 R6 Firmware. In total, 399 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26858?

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

When was CVE-2022-26858 published?

CVE-2022-26858 was published on 2022-09-06 and last updated on 2026-06-17.

CVE-2022-26858

CVE-2022-26858 is a medium-severity vulnerability in Dell Alienware M15 R6 Firmware with a CVSS 3.x base score of 6.1. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Dell Alienware M15 R6 Firmware
Published: 2022-09-06
Last modified: 2026-06-17

Description

Dell BIOS versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.

Frequently asked questions

What is CVE-2022-26858?: Dell BIOS versions contain an Improper Authentication vulnerability. A locally authenticated malicious user could potentially exploit this vulnerability by sending malicious input to an SMI in order to bypass security controls.
How severe is CVE-2022-26858?: CVE-2022-26858 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2022-26858 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-2022-26858?: CVE-2022-26858 primarily affects Dell Alienware M15 R6 Firmware. In total, 399 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26858?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-26858 published?: CVE-2022-26858 was published on 2022-09-06 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000202194

Affected products (399)

cpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:chengming_3980_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:chengming_3988_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:chengming_3990_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:chengming_3991_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g15_5511_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g3_15_3590_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g3_3500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g3_3579_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_15_5587_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_15_5590_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_5000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_5090_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g5_5500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g7_7500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g7_7588_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g7_17_7700_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:g7_17_7790_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:latitude_3480_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:latitude_3580_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:edge_gateway_3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:edge_gateway_5000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:embedded_box_pc_3000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:embedded_box_pc_5000_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_13_5378_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_13_5379_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_13_7378_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_14_3467_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_14_3476_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_3567_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_5566_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_5578_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_5579_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_5582_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_7572_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_17_7773_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_15_gaming_7577_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3470_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:inspiron_3471_firmware:*:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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