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CVE-2025-40317

7.8 · HIGH
Published Dec 8, 2025 EPSS 0.14% (4th pctl)

Overview

CVE-2025-40317 is a high-severity vulnerability. It was published on December 8, 2025 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:

regmap: slimbus: fix bus_context pointer in regmap init calls

Commit 4e65bda8273c ("ASoC: wcd934x: fix error handling in

wcd934x_codec_parse_data()") revealed the problem in the slimbus regmap.

That commit breaks audio playback, for instance, on sdm845 Thundercomm

Dragonboard 845c board:

Unable to handle kernel paging request at virtual address ffff8000847cbad4

...

CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT

Hardware name: Thundercomm Dragonboard 845c (DT)

...

Call trace:

slim_xfer_msg+0x24/0x1ac [slimbus] (P)

slim_read+0x48/0x74 [slimbus]

regmap_slimbus_read+0x18/0x24 [regmap_slimbus]

_regmap_raw_read+0xe8/0x174

_regmap_bus_read+0x44/0x80

_regmap_read+0x60/0xd8

_regmap_update_bits+0xf4/0x140

_regmap_select_page+0xa8/0x124

_regmap_raw_write_impl+0x3b8/0x65c

_regmap_bus_raw_write+0x60/0x80

_regmap_write+0x58/0xc0

regmap_write+0x4c/0x80

wcd9

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

Frequently Asked Questions

What is CVE-2025-40317?

CVE-2025-40317 is a high-severity vulnerability. It was published on December 8, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-40317?

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-2025-40317?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2025-40317?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-40317 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.