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NVD / CVE Program· CNA Linux

CVE-2026-64332: USB: ulpi: fix memory leak on registration failure

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: 0.12% (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 1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04, 5c098f20f15db7f9126129686d1c6da2ce8bbeb0, 624c57147df1977e0d3da53f1da7117861b9cf19; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1.

Low priority for now. Upgrade to Linux Linux 1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04, 5c098f20f15db7f9126129686d1c6da2ce8bbeb0, 624c57147df1977e0d3da53f1da7117861b9cf19; azl3 kernel 6.6.144.1-1 on Azure Linux 3.0 6.6.145.2-1 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: ulpi: fix memory leak on registration failure The allocated device name is never freed on early ULPI device registration failures. Fix this by initialising the device structure earlier and releasing the initial reference whenever registration fails.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 25, 2026
Updated
Sep 3, 2026
EPSS
0.1% · 1th percentile

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-2026-64332

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

Affected versions

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

  • linux linux kernel4.2 and later · before 5.10.261
  • linux linux kernel5.11 and later · before 5.15.212
  • linux linux kernel5.16 and later · before 6.1.178
  • linux linux kernel6.2 and later · before 6.6.145
  • linux linux kernel6.7 and later · before 6.12.96
  • linux linux kernel6.13 and later · before 6.18.39
  • linux linux kernel6.19 and later · before 7.1.4
  • linux linux kernel7.2

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

    • 4.2affected
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before d5b32f36c50894ac2df8fa184e6f35f3a6665ecdaffected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 691e61e5d4cfc5a1b061e937f8cbf2126bfc19a0affected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 88187a43135c79d0e43573b4d8f880bbb919ecebaffected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 5c098f20f15db7f9126129686d1c6da2ce8bbeb0affected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 624c57147df1977e0d3da53f1da7117861b9cf19affected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04affected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before e5493c9a98ffe083acf13ac064828ae598ba3c16affected · git
    • 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f and later · before 8af6812795869a66e9b26044f455b13deecdb69caffected · git
    • before 4.2not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:12linux-6.12before 6.12.100-1~deb12u16.12.100-1~deb12u1
Debian:13linuxbefore 6.12.96-16.12.96-1
Debian:14linuxbefore 7.1.4-17.1.4-1

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-2026-64330Jul 25, 2026 · usb: typec: tcpm: Validate SVID index in svdm_consume_modes()
    31Monitor
  • ← EarlierCVE-2026-64331Jul 25, 2026 · usbip: vudc: fix NULL deref in vep_dequeue()
    22Monitor
  • Later →CVE-2026-64334Jul 25, 2026 · USB: serial: digi_acceleport: fix hard lockup on disconnect
    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 Linux1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04Vendor (CNA)
Linux Linux5c098f20f15db7f9126129686d1c6da2ce8bbeb0Vendor (CNA)
Linux Linux624c57147df1977e0d3da53f1da7117861b9cf19Vendor (CNA)
Linux Linux691e61e5d4cfc5a1b061e937f8cbf2126bfc19a0Vendor (CNA)
Linux Linux88187a43135c79d0e43573b4d8f880bbb919ecebVendor (CNA)
Linux Linux8af6812795869a66e9b26044f455b13deecdb69cVendor (CNA)
Linux Linuxd5b32f36c50894ac2df8fa184e6f35f3a6665ecdVendor (CNA)
Linux Linuxe5493c9a98ffe083acf13ac064828ae598ba3c16Vendor (CNA)
azl3 kernel 6.6.144.1-1 on Azure Linux 3.06.6.145.2-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.180-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.100-1~deb12u1 · 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)

CWE-401 · Missing Release of Memory after Effective Lifetime

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 (7 more)

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

All records