CVE-2023-28576

Time-of-check Time-of-use (TOCTOU) Race Condition in Camera Kernel Driver

HIGH
7
CVSS Score
Published: August 8, 2023 at 09:15 AM UTC
Updated: June 17, 2026 at 05:48 AM UTC
61 products affected across 1 vendorWCD9380 FirmwareWSA8835 FirmwareWSA8830 Firmware

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Severity
HIGH7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

The buffer obtained from kernel APIs such as cam_mem_get_cpu_buf() may be readable/writable in userspace after kernel accesses it. In other words, user mode may race and modify the packet header (e.g. header.count), causing checks (e.g. size checks) in kernel code to be invalid. This may lead to out-of-bounds read/write issues.

Affected

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

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

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

Quick Info

StatusMODIFIED
CWE
CWE-367

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