CVE-2026-8676: CWE-290 Authentication bypass by spoofing in silabs.com Simplicity SDK
CVE-2026-8676 is a high-severity vulnerability in silabs.com Simplicity SDK that allows an attacker to downgrade the security of a Bluetooth LE connection. The attacker can delete an existing bond, spoof the bonded device, and create a new bond, effectively bypassing authentication. This vulnerability has a CVSS score of 8.8, indicating a significant impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-8676) in the Simplicity SDK by silabs.com involves an authentication bypass (CWE-290) through spoofing. An attacker can delete an existing Bluetooth LE bond and impersonate the bonded device to establish a new bond, thereby downgrading the security of the connection. The CVSS 3.1 base score is 8.8 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting a high impact with low attack complexity and no required privileges or user interaction. The vendor has not provided a patch or official remediation at this time, and the product is not a cloud service.
Potential Impact
Successful exploitation allows an attacker to bypass Bluetooth LE authentication by spoofing a bonded device, leading to potential full compromise of confidentiality, integrity, and availability of the affected device's Bluetooth communications. This could enable unauthorized access or control over the device's Bluetooth interface.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting exposure of affected devices to untrusted networks or devices and monitor vendor communications for updates. No official mitigation or temporary fix is currently documented by silabs.com.
CVE-2026-8676: CWE-290 Authentication bypass by spoofing in silabs.com Simplicity SDK
Description
CVE-2026-8676 is a high-severity vulnerability in silabs.com Simplicity SDK that allows an attacker to downgrade the security of a Bluetooth LE connection. The attacker can delete an existing bond, spoof the bonded device, and create a new bond, effectively bypassing authentication. This vulnerability has a CVSS score of 8.8, indicating a significant impact on confidentiality, integrity, and availability. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.
CVSS v3.1
Score 8.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-8676) in the Simplicity SDK by silabs.com involves an authentication bypass (CWE-290) through spoofing. An attacker can delete an existing Bluetooth LE bond and impersonate the bonded device to establish a new bond, thereby downgrading the security of the connection. The CVSS 3.1 base score is 8.8 (AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), reflecting a high impact with low attack complexity and no required privileges or user interaction. The vendor has not provided a patch or official remediation at this time, and the product is not a cloud service.
Potential Impact
Successful exploitation allows an attacker to bypass Bluetooth LE authentication by spoofing a bonded device, leading to potential full compromise of confidentiality, integrity, and availability of the affected device's Bluetooth communications. This could enable unauthorized access or control over the device's Bluetooth interface.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting exposure of affected devices to untrusted networks or devices and monitor vendor communications for updates. No official mitigation or temporary fix is currently documented by silabs.com.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Silabs
- Date Reserved
- 2026-05-15T13:12:50.026Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a160420e29bf47b505ea6bc
Added to database: 05/26/2026, 20:35:44 UTC
Last enriched: 06/02/2026, 21:29:54 UTC
Last updated: 07/31/2026, 19:23:00 UTC
Views: 73
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