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CVE-2026-98759

In the Linux kernel, the following vulnerability has been resolved: usb: typec: tipd: fix uninitialized typec_partner_desc in cd321x_update_work() cd321x_update_work() passes a stack-allocated ty…

Published Oct 18, 2026EPSS 0.21%

Overview

CVE-2026-98759 is a known-severity vulnerability. It was published on October 18, 2026.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

usb: typec: tipd: fix uninitialized typec_partner_desc in cd321x_update_work()

cd321x_update_work() passes a stack-allocated typec_partner_desc to

typec_register_partner() after initializing only usb_pd, accessory and

identity.

typec_register_partner() copies attach and deattach from the descriptor

into the partner. With those fields left unset, garbage function pointers

may be stored and later invoked from typec_partner_link_device() when a USB

device is linked to the port. Uninitialized pd_revision and usb_capability

similarly leak stack data through partner sysfs.

Zero-initialize the descriptor so optional callbacks remain NULL and the

remaining fields are zero.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently asked questions

What is CVE-2026-98759?

CVE-2026-98759 is a known-severity vulnerability. It was published on October 18, 2026.

How severe is CVE-2026-98759?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-98759?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-98759?

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