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5.5
MEDIUM CVSS 3.1
CVE-2025-38693
media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar
Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

INFO

Published Date :

Sept. 4, 2025, 4:15 p.m.

Last Modified :

Jan. 9, 2026, 6:56 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-38693 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Debian debian_linux
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Update the Linux kernel to fix null pointer dereference.
  • Update to a patched Linux kernel version.
  • Apply the provided kernel patch.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-38693.

URL Resource
https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665 Patch
https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554 Patch
https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a Patch
https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59 Patch
https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3 Patch
https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb Patch
https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d Patch
https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b Patch
https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756 Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-38693 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-38693 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-38693 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-38693 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jan. 09, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.103 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.43 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.190 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.241 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.15.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.16 up to (excluding) 6.16.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.149 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.39 up to (excluding) 5.4.297
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756 Types: Patch
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Types: Third Party Advisory
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Types: Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 03, 2025

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Added Reference https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 04, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: media: dvb-frontends: w7090p: fix null-ptr-deref in w7090p_tuner_write_serpar and w7090p_tuner_read_serpar In w7090p_tuner_write_serpar, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
    Added Reference https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665
    Added Reference https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554
    Added Reference https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a
    Added Reference https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59
    Added Reference https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
    Added Reference https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb
    Added Reference https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
    Added Reference https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b
    Added Reference https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact