CVE-2021-36283

MEDIUM
6.7
CVSS Score
Published: September 28, 2021 at 07:20 PM UTC
Updated: June 17, 2026 at 03:58 AM UTC
171 products affected across 1 vendorLatitude 9410 FirmwareLatitude 5511 FirmwareLatitude 5411 Firmware

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Severity
MEDIUM6.7
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement
dell-chengming-3990 (same device)
v < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement
v < 1.7.1
Affected range stops below 1.7.1, so it looks safe — our inference, not a vendor statement
dell-g3-15-3500 (same device)
v < 1.12.0
Affected range stops below 1.12.0, so it looks safe — our inference, not a vendor statement
dell-g3-15-3590 (same device)
v < 1.7.1
Affected range stops below 1.7.1, so it looks safe — our inference, not a vendor statement
dell-g3-15-5500 (same device)
v < 1.12.0
Affected range stops below 1.12.0, so it looks safe — our inference, not a vendor statement
dell-inspiron-3493 (same device)
v < 1.1.0
Affected range stops below 1.1.0, so it looks safe — our inference, not a vendor statement
dell-inspiron-3501 (same device)
v < 1.12.0
Affected range stops below 1.12.0, so it looks safe — our inference, not a vendor statement
dell-inspiron-3593 (same device)
v < 1.12.0
Affected range stops below 1.12.0, so it looks safe — our inference, not a vendor statement
dell-inspiron-3793 (same device)
v < 1.3.1
Affected range stops below 1.3.1, so it looks safe — our inference, not a vendor statement
dell-inspiron-3880 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_MISCPatchVendor Advisory
https://www.dell.com/support/kbdoc/000191495/

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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