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NVD / CVE Program· CNA Linux

CVE-2025-38474: usb: net: sierra: check for no status endpoint

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 0a263ccb905b4ae2af381cd4280bd8d2477b98b8, 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158, 5408cc668e596c81cdd29e137225432aa40d1785; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1.

Low priority for now. Upgrade to Linux Linux 0a263ccb905b4ae2af381cd4280bd8d2477b98b8, 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158, 5408cc668e596c81cdd29e137225432aa40d1785; azl3 kernel 6.6.96.2-2 on Azure Linux 3.0 6.6.104.2-1; cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0 5.15.200.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: usb: net: sierra: check for no status endpoint The driver checks for having three endpoints and having bulk in and out endpoints, but not that the third endpoint is interrupt input. Rectify the omission.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 28, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-38474

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel5.5 and later · before 5.10.241
  • linux linux kernel5.11 and later · before 5.15.190
  • linux linux kernel5.16 and later · before 6.1.147
  • linux linux kernel6.2 and later · before 6.6.100
  • linux linux kernel2.6.35 and later · before 5.4.297
  • linux linux kernel6.13 and later · before 6.15.8
  • linux linux kernel6.7 and later · before 6.12.40
  • linux linux kernel2.6.34
  • linux linux kernel6.16

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.34affected
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 0a263ccb905b4ae2af381cd4280bd8d2477b98b8affected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 5408cc668e596c81cdd29e137225432aa40d1785affected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before a6a238c4126eb3ddb495d3f960193ca5bb778d92affected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 5849980faea1c792d1d5e54fdbf1e69ac0a9bfb9affected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 5dd6a441748dad2f02e27b256984ca0b2d4546b6affected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 65c666aff44eb7f9079c55331abd9687fb77ba2daffected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before bfe8ef373986e8f185d3d6613eb1801a8749837aaffected · git
    • eb4fd8cd355c8ec425a12ec6cbdac614e8a4819d and later · before 4c4ca3c46167518f8534ed70f6e3b4bf86c4d158affected · git
    • before 2.6.34not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.147-16.1.147-1
Debian:13linuxbefore 6.12.41-16.12.41-1
Debian:14linuxbefore 6.16.3-16.16.3-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38471Jul 28, 2025 · tls: always refresh the queue when reading sock
    31Monitor
  • ← EarlierCVE-2025-38473Jul 28, 2025 · Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()
    22Monitor
  • Later →CVE-2025-38475Jul 28, 2025 · smc: Fix various oops due to inet_sock type confusion.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0a263ccb905b4ae2af381cd4280bd8d2477b98b8Vendor (CNA)
Linux Linux4c4ca3c46167518f8534ed70f6e3b4bf86c4d158Vendor (CNA)
Linux Linux5408cc668e596c81cdd29e137225432aa40d1785Vendor (CNA)
Linux Linux5849980faea1c792d1d5e54fdbf1e69ac0a9bfb9Vendor (CNA)
Linux Linux5dd6a441748dad2f02e27b256984ca0b2d4546b6Vendor (CNA)
Linux Linux65c666aff44eb7f9079c55331abd9687fb77ba2dVendor (CNA)
Linux Linuxa6a238c4126eb3ddb495d3f960193ca5bb778d92Vendor (CNA)
Linux Linuxbfe8ef373986e8f185d3d6613eb1801a8749837aVendor (CNA)
azl3 kernel 6.6.96.2-2 on Azure Linux 3.06.6.104.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.05.15.200.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.147-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records