What is CVE-2021-37577?

CVE-2021-37577 is a medium-severity vulnerability in N/a, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.8/10. Published 2024-10-01.

How severe is CVE-2021-37577?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Is CVE-2021-37577 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in N/a

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (15.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L.

Affected products

N/a — versions n/a

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

Frequently asked questions

What is CVE-2021-37577?: CVE-2021-37577 is a medium-severity vulnerability in N/a, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.8/10. Published 2024-10-01.
How severe is CVE-2021-37577?: Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2021-37577 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.