What is CVE-2026-63963?

CVE-2026-63963 is a unscored severity Linux kernel vulnerability. CVE-2026-63963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-63963?

CVE-2026-63963 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-63963?

Yes, CVE-2026-63963 has been patched. Fixed versions include 6.12.93, 6.18.35, 7.0.12 and others.

Is CVE-2026-63963 actively exploited?

CVE-2026-63963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-63963

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers Properly validate the count passed from a device when calling svdm_consume_identity() or svdm_consume_identity_sop_prime() as the device-controlled value could index off of the static arrays, which could leak data.

Package Linux Kernel

Published 2026-07-19

Last modified 2026-07-19

Patch available

Yes

Affected versions

Fixed in 6.12.93, 6.18.35, 7.0.12, 7.1 and their respective stable series.

Fixed in

✓ 6.12.93 6.12.x ✓ 6.18.35 6.18.x ✓ 7.0.12 7.0.x ✓ 7.1

References

4 total

Frequently asked questions

What is CVE-2026-63963?

CVE-2026-63963 is a unscored severity Linux kernel vulnerability . CVE-2026-63963 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-63963?

Yes — CVE-2026-63963 has been patched. Fixed versions include 6.12.93, 6.18.35, 7.0.12 and others.
Is CVE-2026-63963 actively exploited?

No — CVE-2026-63963 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.