CVE-2026-63963

Source
https://cve.org/CVERecord?id=CVE-2026-63963
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63963.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63963
Downstream
Published
2026-07-19T14:55:52.388Z
Modified
2026-07-21T03:47:41.784820707Z
Summary
usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers
Details

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 svdmconsumeidentity() or svdmconsumeidentitysopprime() as the device-controlled value could index off of the static arrays, which could leak data.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63963.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f0690a25a140b853b1842fa80faf828601bb47e8
Fixed
569f7971542eb10025d8a0989b83f28a29d8ba20
Fixed
f9d787fbe83127105e42088cca40e5118db0d810
Fixed
ed8649f3822e211d025bcab5158af6f8a38c8705
Fixed
8fbc349e8383125dd2d8de1c1e926279d398ab17

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63963.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.12.0
Fixed
6.12.93
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.35
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.0.12

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63963.json"