PT-2025-36284 · Linux+2 · Linux Kernel+2

Published 2025-07-23 · Updated 2025-09-06 · CVE-2025-39690

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A potential leak of uninitialized stack data to userspace exists due to the channels array not being zeroed before use. This issue affects the sca3300 driver within the industrial I/O (IIO) subsystem.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use of Uninitialized Resource

Access of Uninitialized Pointer

Weakness Enumeration

CWE-908

CWE-824

Related Identifiers

BDU:2026-03096

CVE-2025-39690

Affected Products

Astra Linux

Linux Kernel

Sca3300

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39690.json · Exploit
• https://cve.org/CVERecord?id=CVE-2025-39690 · Security Note
• https://git.kernel.org/stable/c/4e5b705cc6147f0b9173c6219079f41416bdd3c0 · Patch
• https://osv.dev/vulnerability/CVE-2025-39690 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-03096 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39690 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39690 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-39690 · Vendor Advisory
• https://git.kernel.org/stable/c/c88c04adb8611e436e1e773fd5db3f8d7397d089 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-39690 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-39690 · Vendor Advisory
• https://lore.kernel.org/linux-cve-announce/2025090546-CVE-2025-39690-a303@gregkh · Note
• https://twitter.com/CVEnew/status/1964195464783548754 · Twitter Post
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.16.4 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note