CVE-2026-65933: CWE-126 Buffer over-read in silabs.com BT122
A malformed Bluetooth connection request message can cause the BT122 to leak potentially sensitive information. See vulnerability B-E4 in the related paper below.
AI Analysis
Technical Summary
This vulnerability is a buffer over-read (CWE-126) in the silabs.com BT122 Bluetooth device. When the device receives a malformed Bluetooth connection request message, it may read beyond the intended buffer boundaries, leading to leakage of potentially sensitive information. The vulnerability is identified as B-E4 in a related research paper. The CVSS 4.0 base score is 5.3, reflecting a medium severity with attack vector as adjacent network, low attack complexity, no privileges or user interaction required, and limited impact on confidentiality.
Potential Impact
Successful exploitation of this vulnerability can lead to leakage of potentially sensitive information from the BT122 device. The impact is limited to information disclosure without elevation of privileges or denial of service. The attack requires adjacency to the Bluetooth network and no user interaction or privileges are needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by silabs.com. Users should monitor vendor communications for updates and apply any future patches promptly.
CVE-2026-65933: CWE-126 Buffer over-read in silabs.com BT122
Description
A malformed Bluetooth connection request message can cause the BT122 to leak potentially sensitive information. See vulnerability B-E4 in the related paper below.
CVSS v4.0
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a buffer over-read (CWE-126) in the silabs.com BT122 Bluetooth device. When the device receives a malformed Bluetooth connection request message, it may read beyond the intended buffer boundaries, leading to leakage of potentially sensitive information. The vulnerability is identified as B-E4 in a related research paper. The CVSS 4.0 base score is 5.3, reflecting a medium severity with attack vector as adjacent network, low attack complexity, no privileges or user interaction required, and limited impact on confidentiality.
Potential Impact
Successful exploitation of this vulnerability can lead to leakage of potentially sensitive information from the BT122 device. The impact is limited to information disclosure without elevation of privileges or denial of service. The attack requires adjacency to the Bluetooth network and no user interaction or privileges are needed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been published by silabs.com. Users should monitor vendor communications for updates and apply any future patches promptly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Silabs
- Date Reserved
- 2026-07-23T15:47:23.376Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ddec8bf8831d5395d0000
Added to database: 08/13/2026, 15:12:08 UTC
Last enriched: 08/13/2026, 15:42:43 UTC
Last updated: 08/13/2026, 17:52:46 UTC
Views: 3
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.