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CVE-2026-63963

UnknownEPSS 0.20%

Last modified

CVE-2026-63963 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
0.20%

10.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f0690a25a140b853b1842fa80faf828601bb47e8, < 569f7971542eb10025d8a0989b83f28a29d8ba20; >= f0690a25a140b853b1842fa80faf828601bb47e8, < f9d787fbe83127105e42088cca40e5118db0d810; >= f0690a25a140b853b1842fa80faf828601bb47e8, < ed8649f3822e211d025bcab5158af6f8a38c8705; >= f0690a25a140b853b1842fa80faf828601bb47e8, < 8fbc349e8383125dd2d8de1c1e926279d398ab17
LinuxLinux4.12

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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.
How severe is CVE-2026-63963?
Severity scoring for CVE-2026-63963 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-63963?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST