VDB-322899 · CVE-2025-39690 · Nessus 261625

Linux Kernel up to 6.16.3/6.17-rc2 iio uninitialized pointer

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5.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.16.3/6.17-rc2 and classified as critical. Impacted is an unknown function of the component iio. Performing a manipulation results in uninitialized pointer. This vulnerability is cataloged as CVE-2025-39690. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.16.3/6.17-rc2. It has been classified as critical. This affects an unknown part of the component iio. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. CWE is classifying the issue as CWE-824. The product accesses or uses a pointer that has not been initialized. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: iio: accel: sca3300: fix uninitialized iio scan data Fix potential leak of uninitialized stack data to userspace by ensuring that the `channels` array is zeroed before use.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-39690 since 04/16/2025. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 261625 (Linux Distros Unpatched Vulnerability : CVE-2025-39690), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.16.4 or 6.17-rc3 eliminates this vulnerability. Applying the patch c88c04adb8611e436e1e773fd5db3f8d7397d089/4e5b705cc6147f0b9173c6219079f41416bdd3c0 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (261625) and CERT Bund (WID-SEC-2025-1988). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

Debian Linux
Google Cloud Platform
Amazon Linux 2
Red Hat Enterprise Linux
Ubuntu Linux
SUSE Linux
Oracle Linux
NetApp FAS
NetApp AFF
NetApp ActiveIQ Unified Manager
SUSE openSUSE
RESF Rocky Linux
Open Source Linux Kernel
Microsoft Azure
Dell Secure Connect Gateway
IBM QRadar SIEM
IBM Security Verify Access
Dell NetWorker

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 261625
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39690

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.16.4/6.17-rc3
Patch: c88c04adb8611e436e1e773fd5db3f8d7397d089/4e5b705cc6147f0b9173c6219079f41416bdd3c0

Timelineinfo

04/16/2025 CVE reserved
09/05/2025 +142 days Advisory disclosed
09/05/2025 +0 days VulDB entry created
02/09/2026 +157 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39690 (🔒)
GCVE (CVE): GCVE-0-2025-39690
GCVE (VulDB): GCVE-100-322899
CERT Bund: WID-SEC-2025-1988 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/05/2025 21:45
Updated: 02/09/2026 16:44
Changes: 09/05/2025 21:45 (58), 09/07/2025 06:04 (2), 11/06/2025 17:47 (7), 11/26/2025 16:04 (10), 11/27/2025 16:56 (1), 01/03/2026 13:14 (1), 01/05/2026 12:08 (1), 02/09/2026 16:44 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.