The vulnerability of the mxuport_calc_num_ports() function in the drivers/usb/serial/mxuport.c module of the Linux operating system’s USB device driver framework allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.
🗓️ 09 Sep 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 3 Views
| Reporter | Title | Published | Views | Family All 53 |
|---|---|---|---|---|
 | CVE-2026-63899 | 19 Jul 202614:55 | – | cve |
 | CVE-2026-63899 USB: serial: mxuport: fix memory corruption with small endpoint | 19 Jul 202614:55 | – | cvelist |
 | CVE-2026-63899 | 19 Jul 202614:55 | – | debiancve |
 | Unbreakable Enterprise kernel security update | 4 Sep 202600:00 | – | oraclelinux |
 | EUVD-2026-45672 | 19 Jul 202614:55 | – | euvd |
 | CVE-2026-63899 | 19 Jul 202616:17 | – | nvd |
 | openSUSE 16: cluster-md-kmp-64kb / cluster-md-kmp-azure / cluster-md-kmp-default / etc (openSUSE-SU-2026:21555-1) | 13 Aug 202600:00 | – | nessus |
| Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500248) | 4 Sep 202600:00 | – | nessus |
| Photon OS 5.0: Linux PHSA-2026-5.0-0895 | 26 Jun 202600:00 | – | nessus |
| Photon OS 5.0: Linux PHSA-2026-5.0-0926 | 24 Jul 202600:00 | – | nessus |
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09 Sep 2026 00:00Current
CVSS 26
CVSS 37
EPSS0.00226