CVE-2025-9497
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUse 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA hard-coded credentials vulnerability exists in Microchip Time Provider 4100 devices before version 2.5.0. An attacker can exploit this by performing a malicious manual software update, potentially gaining unauthorized access or control over the device.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2.5.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm device model is Microchip Time Provider 4100Identify the device through management interface, device documentation, or network inventory. This CVE affects only the Time Provider 4100 model, not other Microchip devices.Affected if The device is a Microchip Time Provider 4100 and the firmware version is below 2.5.0
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Check installed firmware versionAccess the device management interface or use SNMP/sysinfo queries to retrieve the current firmware version. Compare the version number against the 2.5.0 threshold.Affected if The firmware version returned is less than 2.5.0 (for example, 2.4.x, 2.3.x, or earlier)
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Verify if manual software update feature is accessibleCheck device configuration to determine if manual/standalone software update functionality is enabled or accessible. This is the attack vector required to inject a malicious update.Affected if Manual software update capability is available without additional authentication barriers or the device update mechanism accepts unsigned/manually provided update files
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Check if default administrative credentials are in useReview credential configuration or attempt to authenticate using known default credentials. The hardcoded credentials embedded in firmware would allow authentication if the device has not had credentials changed.Affected if Default credentials have not been changed from manufacturer defaults, or authentication succeeds using commonly known default credential sets
A defender is affected if they operate a Microchip Time Provider 4100 device with firmware version 2.5.0 or earlier, particularly if manual software update is accessible and default credentials remain unchanged.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped2.5.0
Update Microchip Time Provider 4100 firmware to version 2.5.0 or later to remove the hard-coded credentials.
Version 2.5.0 or later
- 1. Identify the current firmware version of the Microchip Time Provider 4100 device
- 2. Download Microchip Time Provider 4100 firmware version 2.5.0 or later from the official Microchip website or support portal
- 3. Follow Microchip's official firmware update procedure for the Time Provider 4100 device
- 4. After applying the update, verify the device is running firmware version 2.5.0 or later
- 5. Change any default credentials that may have been hardcoded as a secondary security measure
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-9497 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-9497 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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