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CVE-2023-6387

Incorrect buffer parsing in Bluetooth LE sample code may lead to buffer overflow

HIGH
7.5
CVSS Score
Published: February 2, 2024 at 03:18 PM UTC
Updated: June 17, 2026 at 06:50 AM UTC
2 products affected across 2 vendorsGecko Software Development KitGecko Software Development Kit

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Severity
HIGH7.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

A potential buffer overflow exists in the Bluetooth LE HCI CPC sample application in the Gecko SDK which may result in a denial of service or remote code execution

Affected

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

Gecko Software Development Kit· Silabs
95%
v < 4.4.0
Affected range stops below 4.4.0, so it looks safe — our inference, not a vendor statement
Gecko Software Development Kit· Silabs Com
60%
1.0 ≤ v < 4.4.01.0
Affected range stops below 4.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Permissions Required
Source: [email protected]
https://community.silabs.com/069Vm000000WNKuIAO
Release Notes
Source: [email protected]
https://github.com/SiliconLabs/gecko_sdk/releases/tag/v4.4.0

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.5HIGHSilabs
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125CWE-787CWE-131

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