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CVE-2025-55100

Eclipse Threadx Usbx out-of-bounds read

9.1 CRITICALPublic exploitEPSS 0.56%
  1. Published17 Oct 2025

Description

In USBX before 6.4.3, the USB support module for Eclipse Foundation ThreadX, there was a potential out of bound read issue in _ux_host_class_audio10_sam_parse_func() when parsing a list of sampling frequencies.

CVSS 3.1 breakdown

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

Affected products

Eclipse Threadx Usbx< 6.4.3.202503

Remediation

Fixed in
Eclipse Threadx Usbx≥ 6.4.3.202503

References

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Frequently asked

Is CVE-2025-55100 being actively exploited?

CVE-2025-55100 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.56%.

How severe is CVE-2025-55100?

CVE-2025-55100 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.56% probability of exploitation.

Which products are affected by CVE-2025-55100?

Affected products include Eclipse Threadx Usbx.

How do I fix CVE-2025-55100?

Upgrade affected software to a fixed version, for example Eclipse Threadx Usbx 6.4.3.202503 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-55100 against the real software inventory on every managed device, as each hourly inventory arrives. 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.