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NVD / CVE Program· CNA Linux

CVE-2026-64003: scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.44% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Linux Linux 15fb19af49f2073ed77fad16aaabc648b0ca6800, 475f2b37a78f4c698967a7f14f325f04e24c9175, 7205b58702273baf21d6ba7992e6ba15852325f7.

Low priority for now. Upgrade to Linux Linux 15fb19af49f2073ed77fad16aaabc648b0ca6800, 475f2b37a78f4c698967a7f14f325f04e24c9175, 7205b58702273baf21d6ba7992e6ba15852325f7 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: scsi: core: Run queues for all non-SDEV_DEL devices from scsi_run_host_queues While a SCSI host is in a recovery state, scsi_mq_requeue_cmd() will not set the requeue list for a requeued command to be kicked in the future. The expectation is a call to scsi_run_host_queues() will kick all SCSI devices once the recovery state is cleared. However, scsi_run_host_queues() uses shost_for_each_device() which uses scsi_device_get() and so will ignore devices in a partially removed state like SDEV_CANCEL. But these devices may also have requeued requests, leaving their requests stuck from not being kicked and causing the removal process of the device to hang. scsi_run_host_queues() needs to run against more devices than the macro shost_for_each_device() allows. Instead of using the too limiting scsi_device_get() state checks, only ignore devices in SDEV_DEL state or when unable to acquire a reference. Attempt to run the queues for all other devices when scsi_run_host_queues() is called.

HighCVSS 7.5 · v3.1—No exploit Fix available
Published
Jul 19, 2026
Updated
Oct 19, 2026
EPSS
0.4% · 38th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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 kernel6.5 and later · before 6.6.143
  • linux linux kernel6.7 and later · before 6.12.93
  • linux linux kernel6.13 and later · before 6.18.35
  • linux linux kernel6.19 and later · before 7.0.12
  • linux linux kernel7.1

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

    • 6.5affected
    • 8b566edbdbfb5cde31a322c57932694ff48125ed and later · before 15fb19af49f2073ed77fad16aaabc648b0ca6800affected · git
    • 8b566edbdbfb5cde31a322c57932694ff48125ed and later · before d4dddfecdbb5467bef158d4e1486459808357fefaffected · git
    • 8b566edbdbfb5cde31a322c57932694ff48125ed and later · before 475f2b37a78f4c698967a7f14f325f04e24c9175affected · git
    • 8b566edbdbfb5cde31a322c57932694ff48125ed and later · before c740e13e7fe32d8e4d9a1699f65b8daf6709895aaffected · git
    • 8b566edbdbfb5cde31a322c57932694ff48125ed and later · before 7205b58702273baf21d6ba7992e6ba15852325f7affected · git
    • before 6.5not affected · semver
    • 6.6.143 and later · up to and including 6.6.*not affected · semver
    • 6.12.93 and later · up to and including 6.12.*not affected · semver
    • 6.18.35 and later · up to and including 6.18.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:13linuxbefore 6.12.94-16.12.94-1
Debian:14linuxbefore 7.0.12-17.0.12-1

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-2026-64001Jul 19, 2026 · ALSA: pcm: oss: Fix setup list UAF on proc write error
    31Monitor
  • ← EarlierCVE-2026-64002Jul 19, 2026 · ipv4: free net->ipv4.sysctl_local_reserved_ports after unregister_net_sysctl_table()
    31Monitor
  • Later →CVE-2026-64004Jul 19, 2026 · net/iucv: fix locking in .getsockopt
    31Monitor

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 Linux15fb19af49f2073ed77fad16aaabc648b0ca6800Vendor (CNA)
Linux Linux475f2b37a78f4c698967a7f14f325f04e24c9175Vendor (CNA)
Linux Linux7205b58702273baf21d6ba7992e6ba15852325f7Vendor (CNA)
Linux Linuxc740e13e7fe32d8e4d9a1699f65b8daf6709895aVendor (CNA)
Linux Linuxd4dddfecdbb5467bef158d4e1486459808357fefVendor (CNA)
debian:linux6.12.94-1 · Debian:13Package 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.

  • CVE-2022-50189396 days aparttools/power turbostat: Fix file pointer leak
    28Monitor
  • CVE-2026-5315424 days apartmm/hugetlb: restore reservation on error in hugetlb folio copy paths
    22Monitor
  • CVE-2026-5325124 days apartBluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync
    22Monitor
  • CVE-2026-4629241 days apartpmdomain: core: Fix detach procedure for virtual devices in genpd
    22Monitor
  • CVE-2026-10007968 days apartusb: typec: ucsi: unregister debugfs entries on teardown
    22Monitor
  • CVE-2026-4331472 days apartdm: remove fake timeout to avoid leak request
    22Monitor

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

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • 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
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-772 · Missing Release of Resource after Effective Lifetime

CVSS vector

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

nvd-secondary

Attack context

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

Attack patterns (CAPEC)

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records