CVE-2025-47904

Unsigned upgrade package

Published Feb 24, 2026 CVSS 4.0 · 5.7 Medium EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Workaround

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.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microchip timeprovider 4100 Firmware
CPEs cpe:2.3:h:microchip:timeprovider_4100:-:*:*:*:*:*:*:*
cpe:2.3:o:microchip:timeprovider_4100_firmware:*:*:*:*:*:*:*:*
Vendors & Products Microchip timeprovider 4100 Firmware
Metrics cvssV3_1

{'score': 4.1, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Microchip
Microchip timeprovider 4100
Vendors & Products Microchip
Microchip timeprovider 4100
Type Values Removed Values Added
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.
Title Unsigned upgrade package
Weaknesses CWE-494
References
Metrics cvssV4_0

{'score': 5.7, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Microchip
Published
Updated
Mar 31, 2026, 10:39 AM
Reserved
May 13, 2025, 7:24 PM
Status
Modified
Published
Feb 24, 2026, 4:24 PM
Modified
Jun 17, 2026, 9:28 AM