CVE-2025-39680 — HIGH (7.1)

Vulnerability Description

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()")

CVSS Score

7.1

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Linux	Linux Kernel	>= 6.13, < 6.16.4

Related Weaknesses (CWE)

CWE-125

References

FAQ

What is CVE-2025-39680?

CVE-2025-39680 is a vulnerability with a CVSS score of 7.1 (HIGH). 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, t...

How severe is CVE-2025-39680?

CVE-2025-39680 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-39680?

Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.