CVE-2026-63927 (CVSS 7.8)

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: Fix use after free in debug code We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0016

Probability of exploitation

0.06%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/0584af4fe40fa5e254a05d69ce658746de641708 https://git.kernel.org/stable/c/63b0dafa676aad4d0c3f01a61ad8e2990907660c https://git.kernel.org/stable/c/6d0b79d1d1118145e48a68192b6d733e39387053 https://git.kernel.org/stable/c/84ea928ed584756e59c6ac09736f12d1db95ded0 https://git.kernel.org/stable/c/9ea06a3fbf9f16e0d98c52cb3b99642be15ec281 https://git.kernel.org/stable/c/9fe1d84f7e2cf33634e8afb7f4b7f8de182dd913 https://git.kernel.org/stable/c/a15eeeceb94cbc04edef395e4d777ff554bdc27d https://git.kernel.org/stable/c/d5fc183ed614aeba6779cc992325be560f9a4451

Frequently Asked Questions

What is CVE-2026-63927? +

In the Linux kernel, the following vulnerability has been resolved: usb: dwc2: Fix use after free in debug code We're not allowed to dereference "urb" after calling usb_hcd_giveback_urb() so save the urb->status ahead of time. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-63927? +

CVE-2026-63927 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0016, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-63927? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-63927