What is CVE-2025-39687?

CVE-2025-39687 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, affecting Linux kernel versions from 5.10 onward and patched in 5.10.241, 5.15.190, 6.1.149 and others. CVE-2025-39687 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-39687?

CVE-2025-39687 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2025-39687?

Yes, CVE-2025-39687 has been patched. Fixed versions include 5.10.241, 5.15.190, 6.1.149 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-39687 actively exploited?

CVE-2025-39687 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-39687

High

In the Linux kernel, the following vulnerability has been resolved: iio: light: as73211: Ensure buffer holes are zeroed Given that the buffer is copied to a kfifo that ultimately user space can read, ensure we zero it.

Package Linux Kernel

Published 2025-09-05

Last modified 2026-05-12

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 5.10 and later are affected. Fixed in 5.10.241, 5.15.190, 6.1.149, 6.6.103, 6.12.44, 6.16.4, 6.17 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.10.241 5.10.x ✓ 5.15.190 5.15.x ✓ 6.1.149 6.1.x ✓ 6.6.103 6.6.x ✓ 6.12.44 6.12.x ✓ 6.16.4 6.16.x ✓ 6.17

References

The following references provide additional information about CVE-2025-39687 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Mailing List Third Party Advisory
Cert-Portal
https://cert-portal.siemens.com/productcert/html/ssa-032379.html
Kernel patch commit
https://git.kernel.org/stable/c/433b99e922943efdfd62b9a8e3ad1604838181f2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/83f14c4ca1ad78fcfb3e0de07d6d8a0c59550fc2
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8acd9a0eaa8c9a28e385c0a6a56bb821cb549771
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2025-39687

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2025-09-05

Modified 2026-05-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2025-39687?

CVE-2025-39687 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . It affects Linux kernel versions from 5.10 onward and has been patched in 5.10.241, 5.15.190, 6.1.149 and others. CVE-2025-39687 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2025-39687?

CVE-2025-39687 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2025-39687?

Yes — CVE-2025-39687 has been patched. Fixed versions include 5.10.241, 5.15.190, 6.1.149 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-39687 actively exploited?

No — CVE-2025-39687 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.