CVE-2025-39815

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

I

n the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: fix stack overrun when loading vlenb The userspace load can put up to 2048 bits into an xlen bit stack buffer. We want only xlen bits, so check the size beforehand.

References

Link	Resource
https://git.kernel.org/stable/c/6d28659b692a0212f360f8bd8a58712b339f9aac	Patch
https://git.kernel.org/stable/c/799766208f09f95677a9ab111b93872d414fbad7	Patch
https://git.kernel.org/stable/c/c76bf8359188a11f8fd790e5bbd6077894a245cc	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:6.17:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc2::::::
	cpe:2.3:o:linux:linux_kernel:6.17:rc3::::::

History

02 Dec 2025, 19:03

Type	Values Removed	Values Added
CWE		NVD-CWE-noinfo
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
CPE		cpe:2.3:o:linux:linux_kernel:6.17:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.17:rc3:::::: cpe:2.3:o:linux:linux_kernel:6.17:rc2:::::: cpe:2.3:o:linux:linux_kernel::::::::
References	~~() https://git.kernel.org/stable/c/6d28659b692a0212f360f8bd8a58712b339f9aac -~~	() https://git.kernel.org/stable/c/6d28659b692a0212f360f8bd8a58712b339f9aac - Patch
References	~~() https://git.kernel.org/stable/c/799766208f09f95677a9ab111b93872d414fbad7 -~~	() https://git.kernel.org/stable/c/799766208f09f95677a9ab111b93872d414fbad7 - Patch
References	~~() https://git.kernel.org/stable/c/c76bf8359188a11f8fd790e5bbd6077894a245cc -~~	() https://git.kernel.org/stable/c/c76bf8359188a11f8fd790e5bbd6077894a245cc - Patch
First Time		Linux linux Kernel Linux

18 Sep 2025, 13:43

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-09-16 13:15

Updated : 2026-01-14 19:16

NVD link : CVE-2025-39815

Mitre link : CVE-2025-39815

CVE.ORG link : CVE-2025-39815

JSON object : View

Products Affected

linux_kernel

CWE

NVD-CWE-noinfo

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