CVE-2023-24023

Name: CVE-2023-24023
Creator: NVD / NIST
Published: 2023-11-28T07:15:41.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 1.30%

Last modified Jun 17, 2026

CVE-2023-24023 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4 allow certain man-in-the-middle attacks that force a short key length, and might lead to discovery of the encryption key and live injection, aka BLUFFS.. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specification 4.2 through 5.4 allow certain man-in-the-middle attacks that force a short key length, and might lead to discovery of the encryption key and live injection, aka BLUFFS.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

1.30%

66.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Bluetooth	Bluetooth Core Specification	>= 4.2, <= 5.4
Microsoft	Windows 10 1809	< 10.0.17763.5122
Microsoft	Windows 10 21h2	< 10.0.19043.3693
Microsoft	Windows 10 22h2	< 10.0.19045.3693
Microsoft	Windows 11 21h2	< 10.0.22000.2600
Microsoft	Windows 11 22h2	< 10.0.22621.2715
Microsoft	Windows 11 23h2	< 10.0.22631.2715
Microsoft	Windows Server 2019	< 10.0.17763.5122
Microsoft	Windows Server 2022	< 10.0.20348.2113
Microsoft	Windows Server 2022 23h2	< 10.0.25398.531

References

https://dl.acm.org/doi/10.1145/3576915.3623066Technical Description, Third Party Advisory
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/Vendor Advisory
https://dl.acm.org/doi/10.1145/3576915.3623066Technical Description, Third Party Advisory
https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/bluffs-vulnerability/Vendor Advisory

Timeline

Published: Nov 28, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-24023?

How severe is CVE-2023-24023?

CVE-2023-24023 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.

How do I fix CVE-2023-24023?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-24023?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST