Code Integrity Vulnerability in Microchip Time Provider 4100
CVE-2025-47904

5.7MEDIUM

Key Information:

Vendor

Microchip

Status
Time Provider 4100
Vendor
CVE Published:
24 February 2026

What is CVE-2025-47904?

The Microchip Time Provider 4100 is prone to a vulnerability that allows the execution of unauthorized software updates due to a lack of integrity checks during code downloads. This flaw could enable malicious actors to manually install compromised software versions, potentially compromising the integrity and security of the system. It impacts versions prior to 2.5 and highlights the critical need for embedded security measures.

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Deploy the Patch

Affected Version(s)

Time Provider 4100 0 < 2.5

References

https://www.microchip.com/en-us/solutions/technologies/em...
vendor-advisory
https://www.gruppotim.it/en/footer/TIM-red-team.html
technical-description

CVSS V4

Score:
5.7
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dario Emilio Bertani
Raffaele Bova
Andrea Sindoni
Simone Bossi
Antonio Carriero
Marco Manieri
Vito Pistillo
Davide Renna
Manuel Leone
Massimiliano Brolli
TIM Security Red Team Research (TIM S.p.A)
JSON
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