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  1. CVEs
  2. CVE-2026-43378
  1. CVEs

CVE-2026-43378

high
  • Information
  • CPEs
  • Plugins

Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: fix use-after-free in smb2_open() The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is dereferenced after rcu_read_unlock(), creating a use-after-free window.

References

https://git.kernel.org/stable/c/e1b21e6066615e7d3d3a7aa2677e415e563fd7cc

https://git.kernel.org/stable/c/b720c84087cb547f23ce03eab93568c1769e4556

https://git.kernel.org/stable/c/8f5b1a7cb009a93c48e9e334a2f59a660f9afc07

https://git.kernel.org/stable/c/54b48ae83de8bb06e65079d96368efe359d4909c

https://git.kernel.org/stable/c/1e689a56173827669a35da7cb2a3c78ed5c53680

https://git.kernel.org/stable/c/190e5f808e8058640b408ccfed25440b441a718a

Details

Source: Mitre, NVD

Published: 2026-05-08

Updated: 2026-05-08

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

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