CVE-2024-43683: Improper verification of the Host header in TimeProvider 4100

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-10-04 · updated 2026-06-17
Weakness: CWE-601

Description

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Microchip TimeProvider 4100 allows XSS Through HTTP Headers.This issue affects TimeProvider 4100: from 1.0.

Affected products

Microchip TimeProvider 4100: from 1.0 before 2.4.7 — fixed in 2.4.7

How to fix

Upgrade to a fixed version: Microchip TimeProvider 4100 2.4.7. Check the vendor advisory for mitigations.

References

https://www.gruppotim.it/it/footer/red-team.html
https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timeprovider-4100-grandmaster-improper-verification-of-host-header

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