CVE-2025-21863

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-21863
In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/18eae8420081ef8e043ad455937bfb470ef08607
https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b Patch
https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a Patch
https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4 Patch
https://git.kernel.org/stable/c/d261ead565a080e3411b0dd04e6d58a52471cac8
https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
History

01 Jun 2026, 17:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/18eae8420081ef8e043ad455937bfb470ef08607 -
  • () https://git.kernel.org/stable/c/d261ead565a080e3411b0dd04e6d58a52471cac8 -

13 Mar 2025, 21:13

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b - () https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b - Patch
References () https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a - () https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a - Patch
References () https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4 - () https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4 - Patch
References () https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b - () https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b - Patch
First Time Linux
Linux linux Kernel
CWE NVD-CWE-noinfo
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: io_uring: evita la especulación de código de operación. sqe->opcode se utiliza para diferentes tablas, asegúrese de que lo desinfectemos contra especulaciones.
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*

12 Mar 2025, 10:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-12 10:15

Updated : 2026-06-01 17:16

NVD link : CVE-2025-21863

Mitre link : CVE-2025-21863

CVE.ORG link : CVE-2025-21863

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo