Bluetooth Core Specification up to 5.4 Secure Simple Pairing/Secure Connections Pairing BLUFFS channel accessible

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Bluetooth Core Specification up to 5.4. Affected by this issue is some unknown functionality of the component Secure Simple Pairing/Secure Connections Pairing. This manipulation causes channel accessible. This vulnerability is tracked as CVE-2023-24023. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Bluetooth Core Specification up to 5.4. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Secure Simple Pairing/Secure Connections Pairing. The manipulation with an unknown input leads to a channel accessible vulnerability. The CWE definition for the vulnerability is CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed 11/28/2023. It is possible to read the advisory at bluetooth.com. This vulnerability is known as CVE-2023-24023 since 01/20/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1557 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1944). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Google Android

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CNA Base Score: 6.4
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Channel accessible
CWE: CWE-300
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/20/2023 🔍
11/28/2023 +312 days 🔍
11/28/2023 +0 days 🔍
09/07/2025 +649 days 🔍

Sourcesinfo

Advisory: bluetooth.com
Status: Confirmed

CVE: CVE-2023-24023 (🔍)
GCVE (CVE): GCVE-0-2023-24023
GCVE (VulDB): GCVE-100-246247
CERT Bund: WID-SEC-2025-1944 - Android Patchday September 2025: Multiple Vulnerabilities

Entryinfo

Created: 11/28/2023 08:12
Updated: 09/07/2025 18:09
Changes: 11/28/2023 08:12 (39), 12/17/2023 12:18 (11), 08/02/2024 06:24 (27), 09/07/2025 18:09 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!