CVE-2025-47904 Unsigned upgrade package
Attackers can install malicious software via unsigned updates, compromising the integrity of Microchip Time Provider 4100 devices.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47904?
CVE-2025-47904 is a medium-severity vulnerability in Microchip Time Provider 4100, published on 24 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-494
Which versions are affected by CVE-2025-47904?
It affects 1 product.
Products include Microchip Timeprovider 4100 Firmware.
How do I fix CVE-2025-47904?
No fix has been published for CVE-2025-47904 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-47904 being exploited?
There is no known exploitation of CVE-2025-47904 in the wild and no public exploit code.
Other vulnerabilities in Microchip Time Provider 4100
- CVE-2025-47900 RCE on backup configuration password
- CVE-2025-47901 RCE on restore configuration password
- CVE-2024-43683 Improper verification of the Host header in TimeProvider 4100
- CVE-2024-43684 Cross-Site Request Forgery vulnerability in TimeProvider 4100
- CVE-2024-43685 Session token fixation in TimeProvider 4100
Sources
Also known as GHSA-9wv6-vw4x-jjg6.