CVE-2026-3290 json
Timing limitations of the HRNG in RS9116 when power save mode is enabled results in predictable values
published 2026-05-14 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-30381
- cvss
- 7.4
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 5%
- public exploits
- 0
- none known
Summary
Timing limitations of the HRNG in RS9116 when power save mode is enabled results in predictable values
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 7.4 | CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Silicon Labs RS9116 SDK
Classification
- Weakness
-
- CWE-332 Insufficient Entropy in PRNG
References
-
github.com
/SiliconLabs/wiseconnect-wifi-bt-sdk/
patch
-
siliconlabs.lightning.force.com
/sfc/servlet.shepherd/document/download/069Vm00000nIg6IIAS?operationContext=S1
vendor-advisory, permissions-required
Sources
- CVE List CVE-2026-3290
- NVD CVE-2026-3290
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.