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CVE-2025-9497

Microchip Timeprovider 4100 Firmware hard-coded credentials

9.8 CRITICALPublic exploitEPSS 0.32%
  1. Published28 Mar 2026

Description

Use of Hard-coded Credentials vulnerability in Microchip Time Provider 4100 allows Malicious Manual Software Update.This issue affects Time Provider 4100: before 2.5.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Microchip Timeprovider 4100 Firmware< 2.5.0

Remediation

Fixed in
Microchip Timeprovider 4100 Firmware≥ 2.5.0

References

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Frequently asked

Is CVE-2025-9497 being actively exploited?

CVE-2025-9497 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.32%.

How severe is CVE-2025-9497?

CVE-2025-9497 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.32% probability of exploitation.

Which products are affected by CVE-2025-9497?

Affected products include Microchip Timeprovider 4100 Firmware.

How do I fix CVE-2025-9497?

Upgrade affected software to a fixed version, for example Microchip Timeprovider 4100 Firmware 2.5.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-9497 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.