Unsigned upgrade package
Summary
| CVE | CVE-2025-47904 |
|---|---|
| State | PUBLISHED |
| Assigner | Microchip |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-02-24 16:24:06 UTC |
| Updated | 2026-03-31 11:16:13 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 5.7 MEDIUM from dc3f6da9-85b5-4a73-84a2-2ec90b40fca5
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.000040000 probability, percentile 0.001950000 (date 2026-04-01)
Problem Types: CWE-494 | CWE-494 CWE-494 Download of Code Without Integrity Check
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 | Secondary | 5.7 | MEDIUM | 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/E:X/C... |
| 4.0 | CNA | CVSS | 5.7 | MEDIUM | 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 |
| 3.1 | [email protected] | Primary | 4.1 | MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N |
CVSS v4.0 Breakdown
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Microchip | Timeprovider 4100 | - | All | All | All |
| Operating System | Microchip | Timeprovider 4100 Firmware | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Microchip | Time Provider 4100 | affected 2.5 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.gruppotim.it/en/footer/TIM-red-team.html | dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 | www.gruppotim.it | |
| www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-... | dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 | www.microchip.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Dario Emilio Bertani (en)
CNA: Raffaele Bova (en)
CNA: Andrea Sindoni (en)
CNA: Simone Bossi (en)
CNA: Antonio Carriero (en)
CNA: Marco Manieri (en)
CNA: Vito Pistillo (en)
CNA: Davide Renna (en)
CNA: Manuel Leone (en)
CNA: Massimiliano Brolli (en)
CNA: TIM Security Red Team Research (TIM S.p.A) (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2025-04-14T22:00:00.000Z | Reported |
Workarounds
CNA: 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.