CVE-2026-65934: CWE-440 Expected behavior violation in silabs.com BT122
An unencrypted 'pause encryption request' message causes a denial of service in the BT122 module. See vulnerability B-E10 in the related paper below.
AI Analysis
Technical Summary
The BT122 module from silabs.com is vulnerable to a denial of service condition triggered by an unencrypted 'pause encryption request' message. This behavior violates expected protocol handling (CWE-440). The vulnerability has a CVSS 4.0 base score of 7.1, reflecting high severity with network attack vector, low complexity, no privileges required, no user interaction, and high impact on availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker can send an unencrypted 'pause encryption request' message to the BT122 module, causing it to enter a denial of service state. This disrupts normal operation and availability of the affected device. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the BT122 module to trusted sources to reduce exposure to unencrypted malicious messages.
CVE-2026-65934: CWE-440 Expected behavior violation in silabs.com BT122
Description
An unencrypted 'pause encryption request' message causes a denial of service in the BT122 module. See vulnerability B-E10 in the related paper below.
CVSS v4.0
Score 7.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The BT122 module from silabs.com is vulnerable to a denial of service condition triggered by an unencrypted 'pause encryption request' message. This behavior violates expected protocol handling (CWE-440). The vulnerability has a CVSS 4.0 base score of 7.1, reflecting high severity with network attack vector, low complexity, no privileges required, no user interaction, and high impact on availability. No vendor advisory or patch information is currently available.
Potential Impact
An attacker can send an unencrypted 'pause encryption request' message to the BT122 module, causing it to enter a denial of service state. This disrupts normal operation and availability of the affected device. There is no indication of confidentiality or integrity impact. No known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the BT122 module to trusted sources to reduce exposure to unencrypted malicious messages.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Silabs
- Date Reserved
- 2026-07-23T15:47:23.377Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ddec8bf8831d5395d0004
Added to database: 08/13/2026, 15:12:08 UTC
Last enriched: 08/13/2026, 15:41:35 UTC
Last updated: 08/13/2026, 17:52:47 UTC
Views: 3
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