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CVE-2025-71086

7.8 · HIGH
Published Jan 13, 2026 linux CWE-129

Overview

CVE-2025-71086 is a high-severity vulnerability affecting linux linux_kernel. It was published on January 13, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

net: rose: fix invalid array index in rose_kill_by_device()

rose_kill_by_device() collects sockets into a local array[] and then

iterates over them to disconnect sockets bound to a device being brought

down.

The loop mistakenly indexes array[cnt] instead of array[i]. For cnt <

ARRAY_SIZE(array), this reads an uninitialized entry; for cnt ==

ARRAY_SIZE(array), it is an out-of-bounds read. Either case can lead to

an invalid socket pointer dereference and also leaks references taken

via sock_hold().

Fix the index to use i.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 4.19.304, < 4.20 Affected

References

Ref git.kernel.org/stable/c/1418c12cd3bba79dc56b57b61c99efe40f579981 Ref git.kernel.org/stable/c/6595beb40fb0ec47223d3f6058ee40354694c8e4 Ref git.kernel.org/stable/c/819fb41ae54960f66025802400c9d3935eef4042 Ref git.kernel.org/stable/c/92d900aac3a5721fb54f3328f1e089b44a861c38 Ref git.kernel.org/stable/c/9f6185a32496834d6980b168cffcccc2d6b17280 Ref git.kernel.org/stable/c/b409ba9e1e63ccf3ab4cc061e33c1f804183543e Ref git.kernel.org/stable/c/ed2639414d43ba037f798eaf619e878309310451 Ref cert-portal.siemens.com/productcert/html/ssa-019113.html

Frequently Asked Questions

What is CVE-2025-71086?

CVE-2025-71086 is a high-severity vulnerability affecting linux linux_kernel. It was published on January 13, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-71086?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-71086?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-71086?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-71086 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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