Vulnerability · Published Mar 28, 2026 · Assigned by Microchip
CVE-2025-9497Hardcoded Upgrade Decryption Passwords
Critical 9.8
In plain English
A critical-severity hard-coded credentials in Time Provider 4100 from Microchip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.3%top 73.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microchip | Time Provider 4100 | 0 – before 2.5.0 |
Weakness: CWE-798 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H