CVE-2023-23002

Availability loss via unchecked Bluetooth GPIO error pointer

Published Mar 1, 2023 · Updated Mar 20, 2025

NULL pointer dereference in Linux kernel before 5.16.3 allows local users to interrupt service during QCA Bluetooth device probing. The qca_serdev_probe function checks optional GPIO descriptors only for NULL, allowing error pointers to pass as usable handles. Reachability requires a QCA Bluetooth device and a GPIO acquisition error during driver probing; the documented consequence is availability loss only.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux kernel before 5.16.3 allows local users to interrupt service during QCA Bluetooth device probing. The qca_serdev_probe function checks optional GPIO descriptors only for NULL, allowing error pointers to pass as usable handles. Reachability requires a QCA Bluetooth device and a GPIO acquisition error during driver probing; the documented consequence is availability loss only.

The record

CVE
CVE-2023-23002
Published
Mar 1, 2023
Updated
Mar 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 20, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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