CVE & CISA-KEV Catalog

CVE-2026-64334

MEDIUM
5.5
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: digi_acceleport: fix hard lockup on disconnect If submitting the OOB write urb fails persistently (e.g if the device is being disconnected) the driver would loop indefinitely with interrupts disabled. Check for urb submission errors when sending OOB commands to avoid hanging if, for example, open(), set_termios() or close() races with a physical disconnect. This is issue was flagged by Sashiko when reviewing an unrelated change to the driver.

CWE-667

How to fix

Remediation Available
linuxDebian
Fixed in:6.1.180-1CVE-2026-64334
Fixed in:6.12.96-1CVE-2026-64334
Fixed in:7.1.4-1CVE-2026-64334
linux-aws-7.0Ubuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-gcp-7.0Ubuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-hwe-7.0Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-7.0.0-1011-gcpUbuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-7.0.0-1011-gcp-64kUbuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-7.0.0-1012-awsUbuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-7.0.0-1012-aws-64kUbuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-7.0.0-1018-nvidiaUbuntu
Fixed in:7.0.0-1018.18~24.04.1USN-8760-1
linux-image-7.0.0-1018-nvidia-64kUbuntu
Fixed in:7.0.0-1018.18~24.04.1USN-8760-1
linux-image-7.0.0-31-genericUbuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-7.0.0-31-generic-64kUbuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-awsUbuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-aws-64kUbuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-aws-64k-7.0Ubuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-aws-7.0Ubuntu
Fixed in:7.0.0-1012.12~24.04.1USN-8726-1
linux-image-gcpUbuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-gcp-64kUbuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-gcp-64k-7.0Ubuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-gcp-7.0Ubuntu
Fixed in:7.0.0-1011.11~24.04.1USN-8728-1
linux-image-generic-64k-7.0Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-generic-64k-hwe-24.04Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-generic-7.0Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-generic-hwe-24.04Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-nvidia-64k-7.0Ubuntu
Fixed in:7.0.0-1018.18~24.04.1USN-8760-1
linux-image-nvidia-7.0Ubuntu
Fixed in:7.0.0-1018.18~24.04.1USN-8760-1
linux-image-virtual-7.0Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-image-virtual-hwe-24.04Ubuntu
Fixed in:7.0.0-31.31~24.04.1USN-8726-1
linux-nvidia-7.0Ubuntu
Fixed in:7.0.0-1018.18~24.04.1USN-8760-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.10%probability of exploitation in 30 days
1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Related Vulnerabilities

Other CWE-667 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2019-10072High7.573%-Fix
CVE-2002-1850High7.517%-Fix
CVE-2009-2699High7.514%-Fix
CVE-2004-0174High7.512%--
CVE-2009-4272High7.511%--
CVE-2020-24606High8.65.2%-Fix

Common questions

How do I fix CVE-2026-64334?

Published advisories record a fix for 29 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-64334 being actively exploited?

Not that we know of. CVE-2026-64334 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.10% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.

How severe is CVE-2026-64334?

CVE-2026-64334 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-64334 affect?

Published advisories record a fix for linux (Debian), linux-aws-7.0 (Ubuntu), linux-gcp-7.0 (Ubuntu), linux-hwe-7.0 (Ubuntu), and 25 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-03.