Silabs BT122 up to 1.4.0 BT122 module denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00+

Summaryinfo

A vulnerability has been found in Silabs BT122 up to 1.4.0 and classified as problematic. The affected element is an unknown function of the component BT122 module. Performing a manipulation results in denial of service. This vulnerability is reported as CVE-2026-65934. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in Silabs BT122 up to 1.4.0. This affects an unknown part of the component BT122 module. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

An unencrypted 'pause encryption request' message causes a denial of service in the BT122 module.  See vulnerability B-E10 in the related paper below.

The advisory is shared at community.silabs.com. This vulnerability is uniquely identified as CVE-2026-65934 since 07/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

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

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/23/2026 CVE reserved
08/13/2026 +21 days Advisory disclosed
08/13/2026 +0 days VulDB entry created
08/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: community.silabs.com
Status: Confirmed

CVE: CVE-2026-65934 (🔒)
GCVE (CVE): GCVE-0-2026-65934
GCVE (VulDB): GCVE-100-389637

Entryinfo

Created: 08/13/2026 18:07
Changes: 08/13/2026 18:07 (52)
Complete: 🔍
Cache ID: 216::103

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