Vulnerability Details : CVE-2021-37577
Bluetooth LE and BR/EDR Secure Connections pairing and Secure Simple Pairing using the Passkey entry protocol in Bluetooth Core Specifications 2.1 through 5.3 may permit an unauthenticated man-in-the-middle attacker to identify the Passkey used during pairing by reflection of a crafted public key with the same X coordinate as the offered public key and by reflection of the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. This is a related issue to CVE-2020-26558.
Products affected by CVE-2021-37577
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Exploit prediction scoring system (EPSS) score for CVE-2021-37577
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-37577
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L |
1.3
|
5.5
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-11-15 |
CWE ids for CVE-2021-37577
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The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2021-37577
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https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/passkey-impersonation/
Security Notice | Bluetooth® Technology Website
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https://bluetooth.com
Bluetooth® Technology Website
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https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
Reporting Security Vulnerabilities | Bluetooth® Technology Website
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