CVE-2025-39815Linux vulnerability

22 documents6 sources
Severity
5.5MEDIUMNVD
OSV3.2
EPSS
0.0%
top 97.72%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedSep 16
Latest updateApr 9

Description

In 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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

NVDlinux/linux_kernel6.86.12.45+2
Debianlinux/linux_kernel< 6.12.48-1+1
Ubuntulinux/linux_kernel< 6.8.0-106.106
CVEListV5linux/linux2fa290372dfe7dd248b1c16f943f273a3e674f22c76bf8359188a11f8fd790e5bbd6077894a245cc+3
debiandebian/linux< linux 6.16.5-1 (forky)

Patches

🔴Vulnerability Details

10
OSV
linux-raspi, linux-raspi-realtime vulnerabilities2026-04-01
OSV
linux-azure-6.8 vulnerabilities2026-03-25
OSV
linux-azure vulnerabilities2026-03-25
OSV
linux-aws-6.8 vulnerabilities2026-03-23
OSV
linux-realtime, linux-realtime-6.8 vulnerabilities2026-03-17

📋Vendor Advisories

11
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-04-09
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities2026-04-01
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (Azure) vulnerabilities2026-03-25
Ubuntu
Linux kernel (AWS) vulnerabilities2026-03-23
CVE-2025-39815 — Linux vulnerability | cvebase