CVE-2020-11957
7.5 · HIGHOverview
CVE-2020-11957 is a high-severity vulnerability affecting cypress psoc_4.2_ble. It was published on June 9, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
The Bluetooth Low Energy implementation in Cypress PSoC Creator BLE 4.2 component versions before 3.64 generates a random number (Pairing Random) with significantly less entropy than the specified 128 bits during BLE pairing. This is the case for both authenticated and unauthenticated pairing with both LE Secure Connections as well as LE Legacy Pairing. A predictable or brute-forceable random number allows an attacker (in radio range) to perform a MITM attack during BLE pairing.
Remediation
Check the references section for vendor advisories and patches from cypress. Update psoc_4.2_ble 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 | psoc_4.2_ble | >= 0, < 3.64 | Affected |
Frequently Asked Questions
What is CVE-2020-11957?
CVE-2020-11957 is a high-severity vulnerability affecting cypress psoc_4.2_ble. It was published on June 9, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-11957?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. 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-2020-11957?
Check the references section for vendor advisories and patches from cypress. Update psoc_4.2_ble 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-2020-11957?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-11957 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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