CVE-2026-4930: high-severity vulnerability in silabs.com Simplicity SDK
DPA Countermeasures weakening on Series 3 devices
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
SYMCRYPTO is the SiXG301's host side hardware engine accessed by PSA crypto library that accelerates symmetric cryptographic operations (AES encryption/decryption and hashing).
DPA Countermeasures on SYMCRYPTO can be weakened (reduced entropy) by forcing certain seed values if an attacker gains code execution capability on the impacted device.
* Therefore, the keys loaded on SYMCRYPTO may be more vulnerable to extraction through DPA attacks than intended
CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
Affected products
silabs.com · Simplicity SDKRelated CVEs — silabs.com Simplicity SDK
In the same product, most dangerous first.
CVE-2026-8676HIGHCVE-2026-8676EPSS 0.3%CVE-2025-14547LOWECJ-PAKE Integer Underflow Vulnerability in Silicon Labs PSA Crypto and SE Manager APIsEPSS 0.3%CVE-2025-8414CRITICALZigbee Green Power Host Buffer Overflow VulnerabilityEPSS 0.3%CVE-2024-6350MEDIUMEmberZNet malformed MAC layer packet leads to denial of serviceEPSS 0.3%CVE-2025-7432LOWDPA countermeasures not reseeded under certain conditionsEPSS 0.2%CVE-2025-14972MEDIUMInsufficient DPA countermeasure reseedingEPSS 0.1%