CVE-2022-40540

Buffer copy without checking the size of input in Linux Kernel

HIGH
7.8
CVSS Score
Published: March 7, 2023 at 04:43 AM UTC
Updated: June 17, 2026 at 05:01 AM UTC
33 products affected across 1 vendorWCD9380 FirmwareWSA8835 FirmwareWSA8830 Firmware

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

Memory corruption due to buffer copy without checking the size of input while loading firmware in Linux Kernel.

Affected

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

All versions
qualcomm-sm8475 (environment)
All versions
qualcomm-sw5100 (same device)
All versions
qualcomm-sw5100p (same device)

Remediation

No guide yet

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

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-120

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