CVE-2025-39680CWE-125

CVE-2025-39680

High · published September 5, 2025

CVSS v3.1
7.8
EPSS
0%
Percentile
4.5
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer

The data->block[0] variable comes from user. Without proper check,

the variable may be very large to cause an out-of-bounds bug.

Fix this bug by checking the value of data->block[0] first.

1. commit 39244cc75482 ("i2c: ismt: Fix an out-of-bounds bug in

ismt_access()")

2. commit 92fbb6d1296f ("i2c: xgene-slimpro: Fix out-of-bounds bug in

xgene_slimpro_i2c_xfer()")

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00157 · 4.5th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2025-09-05T22:15Z
Affected products (3)
ProductVersionsFixed in
linux/linux_kernel≥ 6.13, < 6.16.46.16.4
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (2)
https://git.kernel.org/stable/c/071e43fcba5ddd9a7813e6cc0aa10299eae41b21 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/57f312b955938fc4663f430cb57a71f2414f601b · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 05 SEP 17:20Z
    i2c: rtl9300: Fix out-of-bounds bug in rtl9300_i2c_smbus_xfer
    cvelistv5