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CVE-2025-47904

Unsigned upgrade package

Published: Feb 24, 2026Updated: Mar 3, 2026 Sources: CVE List NVDCWE-494
NVD MITRE
4.1CVSSMEDIUM
EPSS Score
0.1%
Top 99.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:HPR:HUI:NS:UC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-494

Affected Products

timeprovider 4100 firmwaremicrochipHardware Firmware
Time Provider 4100MicrochipHardware Firmware
microchipcommercialUSHardware Firmwareaka microchip technology

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Feb 24, 2026
Last Updated
Mar 3, 2026

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