CVE-2021-34147
6.5 · MEDIUMOverview
CVE-2021-34147 is a medium-severity vulnerability affecting cypress wireless_internet_connectivity_for_embedded_devices. It was published on September 7, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
The Bluetooth Classic implementation in the Cypress WICED BT stack through 2.9.0 for CYW20735B1 does not properly handle the reception of a malformed LMP timing accuracy response followed by multiple reconnections to the link slave, allowing attackers to exhaust device BT resources and eventually trigger a crash via multiple attempts of sending a crafted LMP timing accuracy response followed by a sudden reconnection with a random BDAddress.
Remediation
Check the references section for vendor advisories and patches from cypress. Update wireless_internet_connectivity_for_embedded_devices to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cypress | wireless_internet_connectivity_for_embedded_devices | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2021-34147?
CVE-2021-34147 is a medium-severity vulnerability affecting cypress wireless_internet_connectivity_for_embedded_devices. It was published on September 7, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2021-34147?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-34147?
Check the references section for vendor advisories and patches from cypress. Update wireless_internet_connectivity_for_embedded_devices to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-34147?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-34147 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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