Dell Client Platform BIOS Auth Bypass -> Info Disclosure
CVE-2026-35159 Published on July 3, 2026

Dell Client Platform BIOS contains an Authentication Bypass by Primary Weakness vulnerability. An unauthenticated attacker with physical access could potentially exploit this vulnerability, leading to Information Disclosure.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-35159 can be exploited with physical access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a high impact on integrity, and a small impact on availability.

Attack Vector:

PHYSICAL

Attack Complexity:

HIGH

Privileges Required:

NONE

User Interaction:

NONE

Scope:

UNCHANGED

Confidentiality Impact:

LOW

Integrity Impact:

HIGH

Availability Impact:

LOW

Weakness Type

Authentication Bypass by Primary Weakness

The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

Affected Versions

Dell Inspiron 15 3520:

Before 1.41.0 or later is affected.

Dell G15 5530:

Before 1.33.0 or later is affected.

Dell Alienware 16 Area-51 AA16250:

Before 2.4.1 or later is affected.

Dell Alienware 16 Aurora AC16250:

Before 1.13.0 or later is affected.

Dell Alienware 16X Aurora AC16251:

Before 2.4.0 or later is affected.

Dell Alienware 18 Area-51 AA18250:

Before 2.4.1 or later is affected.

Dell Alienware Area-51 AAT2250:

Before 1.17.2 or later is affected.

Dell Alienware Aurora ACT1250:

Before 1.16.2 or later is affected.

Dell Alienware m15 R6:

Before 1.44.0 or later is affected.

Dell Alienware m15 R7:

Before 1.40.0 or later is affected.

Dell Alienware m16 R1:

Before 1.34.0 or later is affected.

Dell Alienware m16 R2:

Before 1.21.0 or later is affected.

Dell Alienware m18 R1:

Before 1.34.0 or later is affected.

Dell Alienware M18 R2:

Before 1.22.0 or later is affected.

Dell Alienware x14 R2:

Before 1.32.0 or later is affected.

Dell Alienware x16 R1:

Before 1.32.0 or later is affected.

Dell Alienware X16 R2:

Before 1.22.0 or later is affected.

Dell ChengMing 3900:

Before 1.40.0 or later is affected.

Dell ChengMing 3910/3911:

Before 1.36.0 or later is affected.

Dell 14 DC14250:

Before 1.7.0 or later is affected.

Dell 14 Plus 2-in-1 DB04250:

Before 1.13.0 or later is affected.

Dell 14 Plus DB14250:

Before 1.13.0 or later is affected.

Dell 15 DC15250:

Before 1.10.0 or later is affected.

Dell 16 Plus 2-in-1 DB06250:

Before 1.13.0 or later is affected.

Dell 16 Plus DB16250:

Before 1.13.0 or later is affected.

Dell 24 All-in-One EC24250:

Before 1.15.0 or later is affected.

Dell 27 All-in-One EC27250:

Before 1.15.0 or later is affected.

Dell G15 5510:

Before 1.40.0 or later is affected.

Dell G15 5511:

Before 1.43.0 or later is affected.

Dell G15 5520:

Before 1.41.0 or later is affected.

Dell G16 7620:

Before 1.41.0 or later is affected.

Dell G16 7630:

Before 1.33.0 or later is affected.

Dell Pro 13 Plus PB13250:

Before 2.13.4 or later is affected.

Dell Pro 13 Plus PB13255:

Before 1.15.0 or later is affected.

Dell Pro 13 Premium PA13250:

Before 2.13.4 or later is affected.

Dell Pro 14 Essential PV14250:

Before 1.6.0 or later is affected.

Dell Pro 14 PC14250:

Before 1.15.2 or later is affected.

Dell Pro 14 Plus PB14250:

Before 2.13.4 or later is affected.

Dell Pro 14 Plus PB14255:

Before 1.15.0 or later is affected.

Dell Pro 14 Premium PA14250:

Before 2.13.4 or later is affected.

Dell Pro 16 PC16250:

Before 1.15.2 or later is affected.

Dell Pro 16 Plus PB16250:

Before 2.13.4 or later is affected.

Dell Pro 16 Plus PB16255:

Before 1.15.0 or later is affected.

Dell Pro 24 All-In-One Plus QB24250 / Pro 24 All-In-One QC24250 / Pro 24 All-In-One QC24251:

Before 1.15.1 or later is affected.

Dell Pro Laptop PC14250:

Before 1.15.2 or later is affected.

Dell Pro Laptop PC16250:

Before 1.15.2 or later is affected.

Dell Pro Max 14 MC14250:

Before 1.14.1 or later is affected.

Dell Pro Max 14 MC14255:

Before 2.4.0 or later is affected.

Dell Pro Max 16 MC16250:

Before 1.14.1 or later is affected.

Dell Pro Max 16 MC16255:

Before 2.4.0 or later is affected.

Dell Pro Max Micro FCM2250:

Before 1.15.2 or later is affected.

Dell Pro Max Slim FCS1250:

Before 1.15.2 or later is affected.

Dell Pro Max Tower T2 FCT2250:

Before 1.15.2 or later is affected.

Dell Pro Micro / QCM1255:

Before 1.13.0 or later is affected.

Dell Pro Micro Plus QBM1250 / Pro Micro QCM1250:

Before 1.15.1 or later is affected.

Dell Pro Micro/Micro Plus QCM1250/QBM1250:

Before 1.15.1 or later is affected.

Dell Pro Precision 7 T1:

Before 1.15.1 or later is affected.

Dell Pro Rugged 10 Tablets:

Before 1.9.0 or later is affected.

Dell Pro Rugged 12 Tablet:

Before 1.9.0 or later is affected.

Dell Pro Rugged 13 RA13250:

Before 1.16.1 or later is affected.

Dell Pro Rugged 14 RB14250:

Before 1.16.1 or later is affected.

Dell Pro Slim / QCS1255:

Before 1.13.0 or later is affected.

Dell Pro Slim Essential QVS1260:

Before 1.15.0 or later is affected.

Dell Pro Slim Plus QBS1250 / Pro Slim QCS1250:

Before 1.15.1 or later is affected.

Dell Pro Slim Plus QBS1250/Pro Slim QCS1250:

Before 1.15.1 or later is affected.

Dell Pro Tower / QCT1255:

Before 1.13.0 or later is affected.

Dell Pro Tower Essential QVT1260:

Before 1.15.0 or later is affected.

Dell Pro Tower Plus QBT1250 / Pro Tower QCT1250:

Before 1.15.1 or later is affected.

Dell Pro Tower Plus QBT1250/Pro Tower QCT1250:

Before 1.15.1 or later is affected.

Dell Slim ECS1250:

Before 1.15.0 or later is affected.

Dell Tower ECT1250:

Before 1.15.0 or later is affected.

Dell Inspiron 13 5330:

Before 1.31.0 or later is affected.

Dell Inspiron 14 5420:

Before 1.36.0 or later is affected.

Dell Inspiron 14 5430:

Before 1.29.0 or later is affected.

Dell Inspiron 14 5440:

Before 1.22.0 or later is affected.

Dell Inspiron 14 7430 2-in-1:

Before 1.29.0 or later is affected.

Dell Inspiron 14 7440 2-in-1:

Before 1.22.0 or later is affected.

Dell Inspiron 14 Plus 7420:

Before 1.37.0 or later is affected.

Dell Inspiron 14 Plus 7430:

Before 1.29.0 or later is affected.

Dell Inspiron 14 Plus 7440:

Before 1.25.0 or later is affected.

Dell Inspiron 15 3511:

Before 1.46.0 or later is affected.

Dell Inspiron 15 3530:

Before 1.32.0 or later is affected.

Dell Inspiron 16 5620:

Before 1.36.0 or later is affected.

Dell Inspiron 16 5630:

Before 1.29.0 or later is affected.

Dell Inspiron 16 5640:

Before 1.21.0 or later is affected.

Dell Inspiron 16 7630 2-in-1:

Before 1.29.0 or later is affected.

Dell Inspiron 16 7640 2-in-1:

Before 1.21.0 or later is affected.

Dell Inspiron 16 Plus 7620:

Before 1.37.0 or later is affected.

Dell Inspiron 16 Plus 7630:

Before 1.29.0 or later is affected.

Dell Inspiron 16 Plus 7640:

Before 1.25.0 or later is affected.

Dell Inspiron 24 5420 All-in-One:

Before 1.29.0 or later is affected.

Dell Inspiron 24 5430 All-in-One:

Before 1.22.0 or later is affected.

Dell Inspiron 27 7720 All-in-One:

Before 1.29.0 or later is affected.

Dell Inspiron 27 7730 All-in-One:

Before 1.22.0 or later is affected.

Dell Inspiron 3020 Desktop:

Before 1.36.0 or later is affected.

Dell Inspiron 3020 S:

Before 1.36.0 or later is affected.

Dell Inspiron 3030:

Before 1.26.0 or later is affected.

Dell Inspiron 3030S:

Before 1.26.0 or later is affected.

Dell Inspiron 5410 All-in-One:

Before 1.38.0 or later is affected.

Dell Inspiron 7710 All-in-One:

Before 1.38.0 or later is affected.

Dell Latitude 3320:

Before 1.44.0 or later is affected.

Dell Latitude 3340:

Before 1.31.0 or later is affected.

Dell Latitude 5320:

Before 1.51.0 or later is affected.

Dell Latitude 5330:

Before 1.36.0 or later is affected.

Dell Latitude 5340:

Before 1.29.0 or later is affected.

Dell Latitude 5350:

Before 1.23.0 or later is affected.

Dell Latitude 5421:

Before 1.46.0 or later is affected.

Dell Latitude 5430:

Before 1.39.1 or later is affected.

Dell Latitude 5430 Rugged Laptop:

Before 1.43.0 or later is affected.

Dell Latitude 5431:

Before 1.39.0 or later is affected.

Dell Latitude 5440:

Before 1.31.1 or later is affected.

Dell Latitude 5450:

Before 1.23.1 or later is affected.

Dell Latitude 5520:

Before 1.51.0 or later is affected.

Dell Latitude 5521:

Before 1.43.0 or later is affected.

Dell Latitude 5530:

Before 1.36.0 or later is affected.

Dell Latitude 5531:

Before 1.36.0 or later is affected.

Dell Latitude 5540:

Before 1.29.0 or later is affected.

Dell Latitude 5550:

Before 1.23.0 or later is affected.

Dell Latitude 7030 Rugged Extreme:

Before 1.23.0 or later is affected.

Dell Latitude 7230 Rugged Extreme:

Before 1.32.0 or later is affected.

Dell Latitude 7320:

Before 1.50.1 or later is affected.

Dell Latitude 7320 Detachable:

Before 1.47.0 or later is affected.

Dell Latitude 7330:

Before 1.40.0 or later is affected.

Dell Latitude 7330 Rugged Laptop:

Before 1.43.0 or later is affected.

Dell Latitude 7340:

Before 1.30.0 or later is affected.

Dell Latitude 7350:

Before 1.23.0 or later is affected.

Dell Latitude 7420:

Before 1.50.1 or later is affected.

Dell Latitude 7430:

Before 1.40.0 or later is affected.

Dell Latitude 7440:

Before 1.31.1 or later is affected.

Dell Latitude 7450:

Before 1.23.1 or later is affected.

Dell Latitude 7520:

Before 1.50.1 or later is affected.

Dell Latitude 7530:

Before 1.40.0 or later is affected.

Dell Latitude 7640:

Before 1.31.1 or later is affected.

Dell Latitude 7650:

Before 1.23.1 or later is affected.

Dell Latitude 9330:

Before 1.37.0 or later is affected.

Dell Latitude 9420:

Before 1.47.0 or later is affected.

Dell Latitude 9430:

Before 1.40.1 or later is affected.

Dell Latitude 9440 2-in-1:

Before 1.29.0 or later is affected.

Dell Latitude 9450:

Before 1.21.1 or later is affected.

Dell Latitude 9520:

Before 1.47.1 or later is affected.

Dell OptiPlex 3000 Micro / OptiPlex 3000 Small Form Factor / OptiPlex 3000 Tower:

Before 1.40.0 or later is affected.

Dell OptiPlex 3000 Thin Client:

Before 1.34.0 or later is affected.

Dell OptiPlex 3090 Ultra:

Before 1.42.0 or later is affected.

Dell OptiPlex 5000 Micro / OptiPlex 5000 Small Form Factor / OptiPlex 5000 Tower:

Before 1.40.0 or later is affected.

Dell OptiPlex 5090 Micro / OptiPlex 5090 Small Form Factor / OptiPlex 5090 Tower:

Before 1.42.0 or later is affected.

Dell OptiPlex 5400 All-In-One:

Before 1.1.59 or later is affected.

Dell OptiPlex 5490 AIO:

Before 1.47.0 or later is affected.

Dell OptiPlex 7000 Micro / OptiPlex 7000 Small Form Factor / OptiPlex 7000 Tower / OptiPlex 7000 XE Micro:

Before 1.40.0 or later is affected.

Dell OptiPlex 7000 OEM MT+:

Before 1.40.0 or later is affected.

Dell OptiPlex 7090 Tower:

Before 1.42.0 or later is affected.

Dell OptiPlex 7090 Ultra:

Before 1.42.0 or later is affected.

Dell OptiPlex 7400 All-In-One:

Before 1.1.59 or later is affected.

Dell OptiPlex 7490 AIO:

Before 1.47.0 or later is affected.

Dell OptiPlex AIO 7420:

Before 1.26.1 or later is affected.

Dell OptiPlex All-in-One 7410:

Before 1.36.0 or later is affected.

Dell OptiPlex Micro 7010 / OptiPlex Micro Plus 7010:

Before 1.36.0 or later is affected.

Dell OptiPlex Micro 7020:

Before 1.26.1 or later is affected.

Dell OptiPlex SFF 7020:

Before 1.26.1 or later is affected.

Dell OptiPlex Small Form Factor 7010 / OptiPlex Small Form Factor Plus 7010:

Before 1.36.0 or later is affected.

Dell OptiPlex Tower 7010 / OptiPlex Tower Plus 7010:

Before 1.36.0 or later is affected.

Dell OptiPlex Tower 7020:

Before 1.26.1 or later is affected.

Dell OptiPlex XE4 SFF:

Before 1.40.0 or later is affected.

Dell PC14255:

Before 1.14.1 or later is affected.

Dell PC16255:

Before 1.14.1 or later is affected.

Dell Precision 3260 XE Compact / Precision 3260 Compact:

Before 3.26.0 or later is affected.

Dell Precision 3280 CFF:

Before 1.24.1 or later is affected.

Dell Precision 3450:

Before 1.42.0 or later is affected.

Dell Precision 3460 XE Small Form Factor / Precision 3460 Small Form Factor:

Before 3.26.0 or later is affected.

Dell Precision 3470:

Before 1.39.0 or later is affected.

Dell Precision 3480:

Before 1.31.1 or later is affected.

Dell Precision 3490:

Before 1.23.1 or later is affected.

Dell Precision 3560:

Before 1.51.0 or later is affected.

Dell Precision 3561:

Before 1.43.0 or later is affected.

Dell Precision 3570:

Before 1.36.0 or later is affected.

Dell Precision 3571:

Before 1.36.0 or later is affected.

Dell Precision 3580:

Before 1.29.0 or later is affected.

Dell Precision 3581:

Before 1.29.0 or later is affected.

Dell Precision 3590:

Before 1.23.0 or later is affected.

Dell Precision 3591:

Before 1.23.0 or later is affected.

Dell Precision 3650 MT:

Before 1.47.0 or later is affected.

Dell Precision 3660:

Before 2.37.1 or later is affected.

Dell Precision 3680 Tower:

Before 1.26.1 or later is affected.

Dell Precision 5470:

Before 1.39.0 or later is affected.

Dell Precision 5480:

Before 1.27.0 or later is affected.

Dell Precision 5490:

Before 1.21.1 or later is affected.

Dell Precision 5560:

Before 1.46.0 or later is affected.

Dell Precision 5570:

Before 1.41.0 or later is affected.

Dell Precision 5680:

Before 1.29.0 or later is affected.

Dell Precision 5690:

Before 1.23.0 or later is affected.

Dell Precision 5770:

Before 1.40.0 or later is affected.

Dell Precision 5860 Tower:

Before 3.8.0 or later is affected.

Dell Precision 7560:

Before 1.47.0 or later is affected.

Dell Precision 7670:

Before 1.38.0 or later is affected.

Dell Precision 7680:

Before 1.29.0 or later is affected.

Dell Precision 7760:

Before 1.47.0 or later is affected.

Dell Precision 7770:

Before 1.38.0 or later is affected.

Dell Precision 7780:

Before 1.29.0 or later is affected.

Dell Precision 7875 Tower:

Before 02.10.01 or later is affected.

Dell Precision 7960 Tower:

Before 2.20.0 or later is affected.

Dell Precision Tower 7865:

Before 1.26.0 or later is affected.

Dell Vostro 14 3420:

Before 1.41.0 or later is affected.

Dell Vostro 14 3430:

Before 1.32.0 or later is affected.

Dell Vostro 14 3440:

Before 1.22.0 or later is affected.

Dell Vostro 15 3510:

Before 1.46.0 or later is affected.

Dell Vostro 15 3520:

Before 1.41.0 or later is affected.

Dell Vostro 15 3530:

Before 1.32.0 or later is affected.

Dell Vostro 16 5630:

Before 1.29.0 or later is affected.

Dell Vostro 16 5640:

Before 1.21.0 or later is affected.

Dell Vostro 3020 Small Desktop:

Before 1.36.0 or later is affected.

Dell Vostro 3020 Tower Desktop:

Before 1.36.0 or later is affected.

Dell Vostro 3030:

Before 1.26.0 or later is affected.

Dell Vostro 3030S:

Before 1.26.0 or later is affected.

Dell Vostro 3910:

Before 1.40.0 or later is affected.

Dell Vostro 5620:

Before 1.36.0 or later is affected.

Dell Vostro 5890:

Before 1.42.0 or later is affected.

Dell Vostro 7620:

Before 1.37.0 or later is affected.

Dell XPS 13 9315:

Before 1.38.0 or later is affected.

Dell XPS 13 9340:

Before 1.26.0 or later is affected.

Dell XPS 13 9350:

Before 1.21.0 or later is affected.

Dell XPS 13 Plus 9320:

Before 2.30.0 or later is affected.

Dell XPS 14 (14 Premium) DA14250:

Before 1.11.0 or later is affected.

Dell XPS 14 9440:

Before 1.24.0 or later is affected.

Dell XPS 15 9510:

Before 1.46.0 or later is affected.

Dell XPS 15 9520:

Before 1.41.0 or later is affected.

Dell XPS 15 9530:

Before 1.31.0 or later is affected.

Dell XPS 16 (16 Premium) DA16250:

Before 1.13.0 or later is affected.

Dell XPS 16 9640:

Before 1.23.0 or later is affected.

Dell XPS 17 9720:

Before 1.40.0 or later is affected.

Dell XPS 17 9730:

Before 1.27.0 or later is affected.

Dell XPS 9320:

Before 2.30.0 or later is affected.

Dell Client Platform BIOS Auth Bypass -> Info DisclosureCVE-2026-35159 Published on July 3, 2026

Vulnerability Analysis

Weakness Type

Authentication Bypass by Primary Weakness

Affected Versions

Dell Client Platform BIOS Auth Bypass -> Info Disclosure
CVE-2026-35159 Published on July 3, 2026