CVE record · CVE-2026-64463

usb: typec: tcpci_rt1711h: unregister TCPCI port with devres

CVSS 7.8 HighEPSS 0.0014 · 3rd percentile

Published by the CVE Program (CNA: Linux) at 25 Jul 2026, 08:51 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before 388f5354158fc038214b73baad43a723385fea1e git affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before ce2e36e8759dfbfe546723810c306f42f484866d git affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before 94b1abf1af94aa5a355e9f03675e07bccfc41c4b git affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before e5406c8fb71cd2f89a46300a746f6e7972e621e8 git affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before 569f18a83eed0b0be4615f0c7bed40fb5c50e2e6 git affected 302c570bf36e997d55ad0d60628a2feec76954a4 to before e8da46d99d3710106e7c44db14566bf9b57386b5 git affected 4309ab96ab744703871e35d829177dd9347bf643 git affected 895ec8c86e13f85b119c71d5f95491b48867955e git affected 745dcedb896a740825160228f98dbb5725a49f85 git affected 4.19.131 to before 4.20 semver affected 5.4.50 to before 5.5 semver affected 5.7.7 to before 5.8 semver Other versions: unaffected
Linux	Linux	affected 5.8 unaffected before 5.8 semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.145 to 6.6., inclusive semver unaffected 6.12.96 to 6.12., inclusive semver unaffected 6.18.39 to 6.18., inclusive semver unaffected 7.1.4 to 7.1., inclusive semver unaffected 7.2 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-64463
CNA: Linux
Weakness (CWE): CWE-401
Tags: Linux kernel
Denial of service
Published: 25 Jul 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Linux kernel versions from 5.8 until the fix are affected: the tcpci_rt1711h USB Type-C driver can leave its TCPCI port registered when probe fails after registration. The source gives few details on what an attacker needs or can do. Upgrade to 6.1.191, 6.6.145, 6.12.96, 6.18.39, or a later release in the same series.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0014, the 3rd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

25 Jul 2026, 10:17 UTC Confirmed by NVD

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.