CVE-2025-3301

DPA Countermeasures Unavailable for Certain Cryptographic Operations on Series 2 Devices

LOW
1
CVSS Score
Published: April 29, 2025 at 01:47 PM UTC
Updated: June 17, 2026 at 09:19 AM UTC
1 product affected across 1 vendorSeries 2-soc

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Severity
LOW1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ all released hardware revisions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryPermissions Required
https://community.silabs.com/068Vm00000O8qbY

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

1LOWSilabs
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1255

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