5.5

CVE-2025-38134: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-38134DEBIAN-CVE-2025-38134
Published 03-07-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-38134 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 7.7% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 12 · Related 12
OPENSUSE-SU-2025:20081-1SUSE-SU-2025:21074-1SUSE-SU-2025:21139-1SUSE-SU-2025:21179-1SUSE-SU-2026:20560-1USN-7769-1

Timeline

  1. 03-07-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: usb: acpi: Prevent null pointer dereference in usb_acpi_add_usb4_devlink() As demonstrated by the fix for update_port_device_state, commit 12783c0b9e2c ("usb: core: Prevent null pointer dereference in update_port_device_state"), usb_hub_to_struct_hub() can return NULL in certain scenarios, such as during hub driver unbind or teardown race conditions, even if the underlying usb_device structure exists. Plus, all other places that call usb_hub_to_struct_hub() in the same file do check for NULL return values. If usb_hub_to_struct_hub() returns NULL, the subsequent access to hub->ports[udev->portnum - 1] will cause a null pointer dereference.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

+0.02 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu88 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ f1bfb4a6fed64de1771b43a76631942279851744, < 8fa544bff8466062e42949c93f3e528f4be5624b | ≥ f1bfb4a6fed64de1771b43a76631942279851744, < e3d530173b70514d4390a94f9f979acad689b70a | ≥ f1bfb4a6fed64de1771b43a76631942279851744, < 73fb0ec9436ae87bcae067ce35d6cdd72bade86c | 6.12
  • linux_kernel≥ 6.12, < 6.12.34 | ≥ 6.13, < 6.15.3
Debian1 product
  • linux< 6.12.35-1

3 vendors · 91 products

References

14 links
Show all 14 references