> CVE-2026-63899

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PUBLISHED
2026-07-19 16:17
MODIFIED
2026-07-19 16:17
EPSS (Prob. Exploit)
0.18%
Top 92.9%
DATA SOURCES:
NVD 🔗 2026-07-19 RED HAT 🔗 2026-07-26 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mxuport: fix memory corruption with small endpoint Make sure that the bulk-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption should a malicious device report a smaller size.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: kernel security, bug fix, and enhancement update
An update for kernel is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Important

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

USB: serial: mxuport: fix memory corruption with small endpoint

AFFECTED PACKAGES:
Unknown / Unknown
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
19/07/2026 16:17
Source: NVD
📊 ENRICHISSEMENT 26/07/2026 05:01
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Important", "severity_scale": null }
📊 ENRICHISSEMENT 26/07/2026 05:01
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 2 Dernière mise à jour: 3 months ago

> REFERENCES

https://git.kernel.org/stable/c/086b858b5f5125bc9d967ea2bd825f83d9f8f29d
https://git.kernel.org/stable/c/2f3661eb2446e1ef593da45e01a3b21a906768ec
https://git.kernel.org/stable/c/4085f0dbb1ce2251c9a5938d693de6593f0ab2bd
https://git.kernel.org/stable/c/6c0cf56f00f280d72180bb6ce79741bc787a6269
https://git.kernel.org/stable/c/b40166b4ef96067620a0f248e74ad9658c8f680c
https://git.kernel.org/stable/c/be3a1ed4ae51fa8dde57383277d336ce834f2cd9
https://git.kernel.org/stable/c/ccbec56f2f9af008f1574335cc6a668f16603e47
https://git.kernel.org/stable/c/e906545641d34fb1a09a65b4b5cfdff40eb09681
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