CVE-2025-4276

UsbCoreDxe: improper input validation may lead to arbitrary code execution

Description

UsbCoreDxe has a vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

Remediation

Solution:

  • Kernel 5.3 : Version Tag 05.39.18 Kernel 5.4 : Version Tag 05.47.18 Kernel 5.5 : Version Tag 05.55.18 Kernel 5.6 : Version Tag 05.62.18 Kernel 5.7 : Version Tag 05.71.18

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.02%
Affected: Insyde Software InsydeH2O
Published at:
Updated at:

References

Link Tags
https://www.insyde.com/security-pledge/sa-2025005/

Frequently Asked Questions

What is the severity of CVE-2025-4276?
CVE-2025-4276 has been scored as a high severity vulnerability.
How to fix CVE-2025-4276?
To fix CVE-2025-4276: Kernel 5.3 : Version Tag 05.39.18 Kernel 5.4 : Version Tag 05.47.18 Kernel 5.5 : Version Tag 05.55.18 Kernel 5.6 : Version Tag 05.62.18 Kernel 5.7 : Version Tag 05.71.18
Is CVE-2025-4276 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-4276 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-4276?
CVE-2025-4276 affects Insyde Software InsydeH2O.
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