What is CVE-2026-8676?

CVE-2026-8676 is a high-severity vulnerability in Silabs.com Simplicity Sdk, classified under Authentication Bypass by Spoofing. CVSS score: 8.8/10. Published 2026-05-26.

How severe is CVE-2026-8676?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Silabs.com Simplicity Sdk

CVE-2026-8676

An attacker is able to downgrade the security of a Bluetooth LE connection by deleting an existing bond, spoofing the bonded device and creating a new bond.

Published 2026-05-26 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (23.2th percentile), scored 2026-10-23.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Silabs.com Simplicity Sdk — versions 0

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

community.silabs.com/068Vm00000p3N9C (vendor-advisory)
www.silabs.com/documents/public/release-notes/bt-software-release-notes-9.0.0.0… (release-notes)

Frequently asked questions

What is CVE-2026-8676?: CVE-2026-8676 is a high-severity vulnerability in Silabs.com Simplicity Sdk, classified under Authentication Bypass by Spoofing. CVSS score: 8.8/10. Published 2026-05-26.
How severe is CVE-2026-8676?: High severity. CVSS v3 base score is 8.8 out of 10.