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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0021.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
0ca1268e109acf6d71507398cb95cab2e670b654 affected < bd6c5fe59f374b63173afe5cf0ab38a9a370f2c1
0ca1268e109acf6d71507398cb95cab2e670b654 affected < e124120e89b61a967e40dee6b5e1ecafc45c09d9
0ca1268e109acf6d71507398cb95cab2e670b654 affected < 41d9673941eebdde62ee73848fcfe4ae1105c979
0ca1268e109acf6d71507398cb95cab2e670b654 affected < 0bde5431037a076ff3750da2165fd77a6f5ff058
0ca1268e109acf6d71507398cb95cab2e670b654 affected < 3759a40738b83bb61699c85f063202b514b94f77
0ca1268e109acf6d71507398cb95cab2e670b654 affected < ea2b792330b44b6d7ce671c3e1d59d0c121f7ed1
0ca1268e109acf6d71507398cb95cab2e670b654 affected < f7f566ad7519c7ca3bc9071350002940a2b0e22a
0ca1268e109acf6d71507398cb95cab2e670b654 affected < ab8336a7e414f018430aa1af3a46944032f7ff96
Linux Linux affected
Version Status Constraints
2.6.23 affected —
0 unaffected < 2.6.23
5.10.259 unaffected ≤ 5.10.*
5.15.210 unaffected ≤ 5.15.*
6.1.176 unaffected ≤ 6.1.*
6.6.143 unaffected ≤ 6.6.*
6.12.93 unaffected ≤ 6.12.*
6.18.35 unaffected ≤ 6.18.*
7.0.12 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

No data.

No data.

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Vendors Products
Linux Subscribe
Linux Kernel Subscribe

Project Subscriptions

Vendors Products
Linux Subscribe
Linux Kernel Subscribe
Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8593-1 Linux kernel vulnerabilities
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0bde5431037a076ff3750da2165fd77a6f5ff058 cve-icon
https://git.kernel.org/stable/c/3759a40738b83bb61699c85f063202b514b94f77 cve-icon
https://git.kernel.org/stable/c/41d9673941eebdde62ee73848fcfe4ae1105c979 cve-icon
https://git.kernel.org/stable/c/ab8336a7e414f018430aa1af3a46944032f7ff96 cve-icon
https://git.kernel.org/stable/c/bd6c5fe59f374b63173afe5cf0ab38a9a370f2c1 cve-icon
https://git.kernel.org/stable/c/e124120e89b61a967e40dee6b5e1ecafc45c09d9 cve-icon
https://git.kernel.org/stable/c/ea2b792330b44b6d7ce671c3e1d59d0c121f7ed1 cve-icon
https://git.kernel.org/stable/c/f7f566ad7519c7ca3bc9071350002940a2b0e22a cve-icon
https://lore.kernel.org/linux-cve-announce/2026071943-CVE-2026-63900-a0cf@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-63900 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-63900 cve-icon
History

Wed, 22 Jul 2026 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-20

Wed, 22 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-824
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Sun, 19 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
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.
Title USB: serial: keyspan: fix missing indat transfer sanity check
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-19T14:55:08.847Z

Reserved: 2026-07-19T07:54:57.019Z

Link: CVE-2026-63900

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-19T00:00:00Z

Links: CVE-2026-63900 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-07-22T18:45:02Z

Weaknesses