Bluetooth re-pairing with legitimate device can use lower security level

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-19292
StatePUBLISHED
AssignerSilabs
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-13 15:19:37 UTC
Updated2026-08-13 18:17:23 UTC
DescriptionRe-pairing with a legitimate device can use a lower security level than previous making brute-forcing the LTK easier. See V4 in the BLERP paper linked below.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.002270000 probability, percentile 0.136850000 (date 2026-08-15)

Problem Types: CWE-305 | CWE-305 CWE-305 Authentication bypass by primary weakness

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Silabs.com WiseConnect affected 4.0.0 4.1.0 semver Not specified
CNA Silabs.com WiseConnect affected 2.0.0 2.14.0 semver Not specified

References

ReferenceSourceLinkTags
docs.silabs.com/sisdk-release-notes/latest/sisdk-wifi-release-notes/sisdk-wif... [email protected] docs.silabs.com
docs.silabs.com/rs9116-wiseconnect/latest/wifibt-wc-release-notes/rs9116-ble-... [email protected] docs.silabs.com
www.ndss-symposium.org/ndss-paper/blerp-ble-re-pairing-attacks-and-defenses [email protected] www.ndss-symposium.org
community.silabs.com/068Vm00000x0yyH [email protected] community.silabs.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report