CVE-2026-63900

USB: serial: keyspan: fix missing indat transfer sanity check

MEDIUM

5.5

CVSS Score

Published: July 19, 2026 at 02:55 PM UTC

Updated: October 30, 2026 at 02:38 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: keyspan: fix missing indat transfer sanity check Add the missing sanity check on the size of usa49wg indat transfers to avoid parsing stale or uninitialised slab data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.23 ≤ v < 5.10.2595.11 ≤ v < 5.15.2105.16 ≤ v < 6.1.1766.13 ≤ v < 6.18.356.19 ≤ v < 7.0.126.2 ≤ v < 6.6.1436.7 ≤ v < 6.12.930ca1268e109acf6d71507398cb95cab2e670b6542.6.23 7.1

Vendor states this is fixed in 0bde5431037a076ff3750da2165fd77a6f5ff058 (fixed)

Vendor states this is fixed in 3759a40738b83bb61699c85f063202b514b94f77 (fixed)

Vendor states this is fixed in 41d9673941eebdde62ee73848fcfe4ae1105c979 (fixed)

Vendor states this is fixed in ab8336a7e414f018430aa1af3a46944032f7ff96 (fixed)

Vendor states this is fixed in bd6c5fe59f374b63173afe5cf0ab38a9a370f2c1 (fixed)

Vendor states this is fixed in e124120e89b61a967e40dee6b5e1ecafc45c09d9 (fixed)

Vendor states this is fixed in ea2b792330b44b6d7ce671c3e1d59d0c121f7ed1 (fixed)

Vendor states this is fixed in f7f566ad7519c7ca3bc9071350002940a2b0e22a (fixed)

Vendor states this is fixed in 2.6.23 (unaffected)

Vendor states this is fixed in 5.10.259 (unaffected)

Vendor states this is fixed in 5.15.210 (unaffected)

Vendor states this is fixed in 6.1.176 (unaffected)