CVE-2025-47904 MEDIUM

CVE-2025-47904: Unsigned upgrade package

Vendor Microchip

Product Time Provider 4100

Weakness CWE-494 · Download without integrity check

Published February 24, 2026

Last update March 31, 2026

View on NVD All CVEs

CVSS base score

5.7/10

Attack vector Local

Attack complexity High

Privileges required High

User interaction None

Confidentiality —

Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 24, 2026 CVE published

March 31, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-47904 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/494.html