High severity · published Jun 25, 2026
CVE-2026-2815
Incorrect use of the PUF key for user key generation in EFR32xG27 results in predictable keys
8.4
CVSS
0.3%
EPSS
No
On KEV
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
SiSDK · Silicon Labs
through 2025.12.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2815
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2815
github.com
https://github.com/SiliconLabsSoftware/sisdk-release
siliconlabs.lightning.force.com
https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000kDYsfIAG?operationContext=S1
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