CVE-2025-47904

Summary

Download of Code Without Integrity Check vulnerability in Microchip Time Provider 4100 allows Malicious Manual Software Update.This issue affects Time Provider 4100: before 2.5.

Affected Software

Weaknesses

• CWE-494: CWE-494 Download of Code Without Integrity Check

Workarounds

Upgrades are only available on a separate management port which should not be connected to an untrusted network. ACLs are available to further restrict access to only trusted addresses.

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

References

• https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timeprovider-4100-unsigned-upgrade-vulnerability
• https://www.gruppotim.it/en/footer/TIM-red-team.html

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