CVE-2023-3024

Bluetooth service interruption via segmented response overflow

Published Sep 29, 2023 · Updated Sep 25, 2024

Out-of-bounds write in Silicon Labs Gecko SDK before 6.0.0 allows attackers to interrupt Bluetooth LE service over an adjacent connection. The Bluetooth LE stack segments a crafted prepare write response without preserving buffer bounds, causing an out-of-bounds memory write. Exploitation requires radio proximity, no authentication or user action, and the ability to force response segmentation; resulting memory corruption can interrupt device service.

CVSS severity5.9
Medium
EPSS probability0.26%
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 write in Silicon Labs Gecko SDK before 6.0.0 allows attackers to interrupt Bluetooth LE service over an adjacent connection. The Bluetooth LE stack segments a crafted prepare write response without preserving buffer bounds, causing an out-of-bounds memory write. Exploitation requires radio proximity, no authentication or user action, and the ability to force response segmentation; resulting memory corruption can interrupt device service.

The record

CVE
CVE-2023-3024
Published
Sep 29, 2023
Updated
Sep 25, 2024
Vendor
Sigma Designs
Product
Gecko SDK (GSDK)
Classifications
CWE-119, CWE-787, CAPEC-100, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 2024Record 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=1.0.0 <6.0.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Sigma Designs · Gecko SDK (GSDK)version=1.0.0 <6.0.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9Silicon LabsCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/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.

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-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
CAPEC-100Overflow Buffers
T1499Endpoint Denial of Service

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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