What is CVE-2025-39774?

CVE-2025-39774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.14 onward and patched in 6.16.4 and 6.17. CVE-2025-39774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-39774?

CVE-2025-39774 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2025-39774?

Yes, CVE-2025-39774 has been patched. Fixed versions include 6.16.4 and 6.17. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-39774 actively exploited?

CVE-2025-39774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-39774

Medium

In the Linux kernel, the following vulnerability has been resolved: iio: adc: rzg2l_adc: Set driver data before enabling runtime PM When stress-testing the system by repeatedly unbinding and binding the ADC device in a loop, and the ADC is a supplier for another device (e.g., a thermal hardware block that reads temperature through the ADC), it may happen that the ADC device is runtime-resumed immediately after runtime PM is enabled, triggered by its consumer. At this point, since drvdata is not yet set and the driver's runtime PM callbacks rely on it, a crash can occur. To avoid this, set drvdata just after it was allocated.

Package Linux Kernel

Published 2025-09-11

Last modified 2025-11-25

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.14 and later are affected. Fixed in 6.16.4, 6.17 and their respective stable series.

Affected from

≥ 6.14

Fixed in

✓ 6.16.4 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-39774 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/c69e13965f26b8058f538ea8bdbd2d7718cf1fbe
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e7ce902db071a7b3e696a43d6e14ca57360deee6
Patch

Details

CVE ID CVE-2025-39774

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-11

Modified 2025-11-25

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-39774?

CVE-2025-39774 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.14 onward and has been patched in 6.16.4 and 6.17. CVE-2025-39774 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-39774?

CVE-2025-39774 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2025-39774?

Yes — CVE-2025-39774 has been patched. Fixed versions include 6.16.4 and 6.17. If you are running Linux kernel 6.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-39774 actively exploited?

No — CVE-2025-39774 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.