SMP security request

Answer in brief

CVE-2026-19293 records a High severity (CVSS 8.8) vulnerability in SMP security request. The current sources do not mark it as known exploited. The current feed maps silabs.com/WiseConnect (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 13, 2026Updated Sep 8, 2026Source checked Sep 27, 2026First seen by HOL Aug 13, 2026Material review Sep 8, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.8
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps silabs.com/WiseConnect (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
silabs.com/WiseConnectgeneric	>=4.0.0 <4.1.0 \|\| >=2.0.0 <2.14.0	4.1.0, 2.14.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for silabs.com/WiseConnect.
Review the reported fix. Update silabs.com/WiseConnect to 4.1.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 13, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 13, 2026

Sources and claim methodology

Upstream source description

SMP security request (from peripheral) does not include the maximum encryption key size supported. Using a key with less than the maximum keysize makes brute-forcing the key easier. See V6 in BLERP paper linked below.

Quoted source text, attributed separately from HOL analysis.