Bluetooth Core up to 5.2 LE/BR/EDR channel accessible

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Bluetooth Core up to 5.2 and classified as critical. This impacts an unknown function of the component LE/BR/EDR. This manipulation causes channel accessible. This vulnerability is handled as CVE-2020-26558. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Bluetooth Core up to 5.2. Affected by this vulnerability is an unknown part of the component LE/BR/EDR. 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.

The weakness was released 05/25/2021. It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2020-26558. 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.

The vulnerability scanner Nessus provides a plugin with the ID 260190 (Linux Distros Unpatched Vulnerability : CVE-2021-37577), which helps to determine the existence of the flaw in a target environment.

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 Tenable (260190). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 260190
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-37577

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/04/2020 🔍
05/25/2021 +233 days 🔍
05/25/2021 +0 days 🔍
11/04/2025 +1624 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Status: Confirmed

CVE: CVE-2020-26558 (🔍)
GCVE (CVE): GCVE-0-2020-26558
GCVE (VulDB): GCVE-100-175591

Entryinfo

Created: 05/25/2021 08:59
Updated: 11/04/2025 22:58
Changes: 05/25/2021 08:59 (36), 05/27/2021 14:46 (2), 09/02/2025 01:38 (16), 11/04/2025 22:58 (19)
Complete: 🔍
Cache ID: 216::103

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

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