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CVE-2025-39746

5.5 · MEDIUM
Published Sep 11, 2025 linux EPSS 0.15% (5th pctl)

Overview

CVE-2025-39746 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 11, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

wifi: ath10k: shutdown driver when hardware is unreliable

In rare cases, ath10k may lose connection with the PCIe bus due to

some unknown reasons, which could further lead to system crashes during

resuming due to watchdog timeout:

ath10k_pci 0000:01:00.0: wmi command 20486 timeout, restarting hardware

ath10k_pci 0000:01:00.0: already restarting

ath10k_pci 0000:01:00.0: failed to stop WMI vdev 0: -11

ath10k_pci 0000:01:00.0: failed to stop vdev 0: -11

ieee80211 phy0: PM: **** DPM device timeout ****

Call Trace:

panic+0x125/0x315

dpm_watchdog_set+0x54/0x54

dpm_watchdog_handler+0x57/0x57

call_timer_fn+0x31/0x13c

At this point, all WMI commands will timeout and attempt to restart

device. So set a threshold for consecutive restart failures. If the

threshold is exceeded, consider the hardware is unreliable and all

ath10k operations should be skipped to avoid system crash.

fail_cont_count and pending_recovery are ato

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 >= 3.11, < 6.12.43 Affected

Frequently Asked Questions

What is CVE-2025-39746?

CVE-2025-39746 is a medium-severity vulnerability affecting linux linux_kernel. It was published on September 11, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-39746?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-39746?

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-2025-39746?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-39746 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.