Vulnerability · Published Apr 29, 2025 · Assigned by Silabs

CVE-2025-3301DPA Countermeasures Unavailable for Certain Cryptographic Operations on Series 2 Devices

Low 1.0

In plain English

A low-severity security flaw in Series 2 SoCs and associated modules from silabs.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 4.0)1.0Low

Exploit odds (30 days)0.2%top 86.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

DPA countermeasures are unavailable for ECDH key agreement and EdDSA signing operations on Curve25519 and Curve448 on all Series 2 modules and SoCs due to a lack of hardware and software support. A successful DPA attack may result in exposure of confidential information. The best practice is to use the impacted crypto curves and operations with ephemeral keys to reduce the number of DPA traces that can be collected.

Affected products (as reported)

Vendor	Product	Versions
silabs.com	Series 2 SoCs and associated modules	0 – through all released hardware revisions

Weakness: CWE-1255 · Vector: CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

References

https://community.silabs.com/068Vm00000O8qbY vendor-advisory, permissions-required