CVE-2025-23050

Application interruption via unchecked Bluetooth ATT fields

Published Oct 31, 2025 · Updated Oct 31, 2025

Out-of-bounds read in affected Qt Framework 5 and 6 releases allows physically proximate attackers to interrupt Linux applications via Bluetooth. The QLowEnergyControllerPrivateBluez reply handlers trust ATT response lengths and element sizes, permitting reads past received arrays and division by zero. Exposure requires the Bluetooth Kernel API backend; central applications must connect to the device, while peripherals must advertise in connectable AdvInd mode.

CVSS severity3.1
Low
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in affected Qt Framework 5 and 6 releases allows physically proximate attackers to interrupt Linux applications via Bluetooth. The QLowEnergyControllerPrivateBluez reply handlers trust ATT response lengths and element sizes, permitting reads past received arrays and division by zero. Exposure requires the Bluetooth Kernel API backend; central applications must connect to the device, while peripherals must advertise in connectable AdvInd mode.

The record

CVE
CVE-2025-23050
Published
Oct 31, 2025
Updated
Oct 31, 2025
Vendor
The Qt Company
Product
Qt Framework
Classifications
CWE-125, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <5.15.19
  2. Affected versionversion=6.0.0 <6.5.9
  3. Affected versionversion=6.6.0 <6.8.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Qt Company · Qt Frameworkversion=0 <5.15.19; version=6.0.0 <6.5.9; version=6.6.0 <6.8.2

Published CVSS scores

3.1MITRECVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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