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NVD / CVE Program· CNA Linux

CVE-2023-54326: misc: pci_endpoint_test: Free IRQs before removing the device

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.14% (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 14bdee38e96c7d37ca15e7bea50411eee25fe315, 38d12bcf4e2ce3d285eb29644a79a54f42040fab, c2dba13bc0c62b79a3cbe4bfe5faa32231bf9b55.

Low priority for now. Upgrade to Linux Linux 14bdee38e96c7d37ca15e7bea50411eee25fe315, 38d12bcf4e2ce3d285eb29644a79a54f42040fab, c2dba13bc0c62b79a3cbe4bfe5faa32231bf9b55 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: misc: pci_endpoint_test: Free IRQs before removing the device In pci_endpoint_test_remove(), freeing the IRQs after removing the device creates a small race window for IRQs to be received with the test device memory already released, causing the IRQ handler to access invalid memory, resulting in an oops. Free the device IRQs before removing the device to avoid this issue.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Dec 30, 2025
Updated
Aug 5, 2026
EPSS
0.1% · 3th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.8
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.

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-2023-54326

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.

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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

    • 4.19affected
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before fb7f8bdb886f2ebf35ee5edaf2bf5f02b063ddb7affected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before dd2210379205fcd23a9d8869b0cef90e3770577caffected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before cdf9a7e2cdc7a5464e3cc6d0b715ba2b1d215521affected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before 14bdee38e96c7d37ca15e7bea50411eee25fe315affected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before c2dba13bc0c62b79a3cbe4bfe5faa32231bf9b55affected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before 38d12bcf4e2ce3d285eb29644a79a54f42040fabaffected · git
    • e03327122e2c8e6ae4565ef5b3d3cbe4364546a1 and later · before f61b7634a3249d12b9daa36ffbdb9965b6f24c6caffected · git
    • before 4.19not affected · semver
    • 4.19.291 and later · up to and including 4.19.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.11-16.4.11-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-54324Dec 30, 2025 · dm: fix a race condition in retrieve_deps
    0Monitor
  • ← EarlierCVE-2023-54325Dec 30, 2025 · crypto: qat - fix out-of-bounds read
    28Monitor
  • Later →CVE-2022-50822Dec 30, 2025 · RDMA/restrack: Release MR restrack when delete
    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 Linux14bdee38e96c7d37ca15e7bea50411eee25fe315Vendor (CNA)
Linux Linux38d12bcf4e2ce3d285eb29644a79a54f42040fabVendor (CNA)
Linux Linuxc2dba13bc0c62b79a3cbe4bfe5faa32231bf9b55Vendor (CNA)
Linux Linuxcdf9a7e2cdc7a5464e3cc6d0b715ba2b1d215521Vendor (CNA)
Linux Linuxdd2210379205fcd23a9d8869b0cef90e3770577cVendor (CNA)
Linux Linuxf61b7634a3249d12b9daa36ffbdb9965b6f24c6cVendor (CNA)
Linux Linuxfb7f8bdb886f2ebf35ee5edaf2bf5f02b063ddb7Vendor (CNA)
debian:linux6.1.52-1 · 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

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 (6 more)

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

All records