CVE-2025-38693

MEDIUM EPSS 5.5%
Published Sep 4, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 4, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

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()")

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥2.6.39  –  <5.4.297
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.149
linuxlinux_kernel*≥6.2  –  <6.6.103
linuxlinux_kernel*≥6.7  –  <6.12.43
linuxlinux_kernel*≥6.13  –  <6.15.11
linuxlinux_kernel*≥6.16  –  <6.16.2
debiandebian_linux11.0any

References 12

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-032379.html
  • git.kernel.org https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b3d77a3fc71c084575d3df4ec6544b3fb6ce587d
  • git.kernel.org https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/17b30e5ded062bd74f8ca6f317e1d415a8680665
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/39b06b93f24dff923c4183d564ed28c039150554
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/454a443eaa792c8865c861a282fe6d4f596abc3a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bbaec6a036940e22318f0454b50b8000845ab59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a41ecfc3415ebe3b4c44f96b3337691dcf431a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/99690a494d91a0dc86cebd628da4c62c40552bcb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ed0234c8458b3149f15e496b48a1c9874dd24a1b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f98132a59ccc59a8b97987363bc99c8968934756
    Patch