CVE-2026-2815
Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys
HIGH
8.4
CVSS Score
Published: June 25, 2026 at 01:27 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
1 product affected across 1 vendorSimplicity SDK
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Severity
HIGH8.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit
Description
Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 2025.12.1
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
Vendor AdvisoryPermissions Required
Source: cverecord
https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000kDYsfIAG?operationContext=S1SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.4HIGHSilabs
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-339
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