CVE-2021-31615
5.3 · MEDIUMOverview
CVE-2021-31615 is a medium-severity vulnerability affecting bluetooth bluetooth_core_specification. It was published on June 25, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Unencrypted Bluetooth Low Energy baseband links in Bluetooth Core Specifications 4.0 through 5.2 may permit an adjacent device to inject a crafted packet during the receive window of the listening device before the transmitting device initiates its packet transmission to achieve full MITM status without terminating the link. When applied against devices establishing or using encrypted links, crafted packets may be used to terminate an existing link, but will not compromise the confidentiality or integrity of the link.
Remediation
Check the references section for vendor advisories and patches from bluetooth. Update bluetooth_core_specification 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 |
|---|---|---|---|
| bluetooth | bluetooth_core_specification | 4.0 | Affected |
Frequently Asked Questions
What is CVE-2021-31615?
CVE-2021-31615 is a medium-severity vulnerability affecting bluetooth bluetooth_core_specification. It was published on June 25, 2021 and has a CVSS 3.1 base score of 5.3 (MEDIUM).
How severe is CVE-2021-31615?
This vulnerability has a CVSS 3.1 base score of 5.3, 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-2021-31615?
Check the references section for vendor advisories and patches from bluetooth. Update bluetooth_core_specification 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-2021-31615?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-31615 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.
How CyberStrike Helps
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