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Vulnerabilities

Vulnerability · CVE-2023-53116

In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation ma

Published May 2, 2025 · catalog updated Oct 15, 2026 · Linux Linux

Check this week

CVE-2023-53116 is not in CISA KEV. FIRST estimates a 54.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
54.00%
Remediation
Version ranges on file
Affected products
cpe linux/linux kernel · vendor Linux Linux a07b4970f464f13640e28e16dad6cfa33647cc99 <6173a77b7e9d3e202bdb9897b23f2a8afe7bf286

In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local variable to save the sq pointer before calling __nvmet_req_complete(), thus avoiding dereferencing the req pointer after that function call.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe linux/linux kernel6.3
  • vendor Linux Linux a07b4970f464f13640e28e16dad6cfa33647cc99 <6173a77b7e9d3e202bdb9897b23f2a8afe7bf286a07b4970f464f13640e28e16dad6cfa33647cc99 <6173a77b7e9d3e202bdb9897b23f2a8afe7bf286

How to fix CVE-2023-53116

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-53116 is not in CISA KEV. FIRST estimates a 54.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with linux/linux kernel 6.3; Linux Linux a07b4970f464f13640e28e16dad6cfa33647cc99 <6173a77b7e9d3e202bdb9897b23f2a8afe7bf286 a07b4970f464f13640e28e16dad6cfa33647cc99 <6173a77b7e9d3e202bdb9897b23f2a8afe7bf286. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 54.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 2, 2025 · NIST NVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local

  2. Oct 15, 2026 · NIST NVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local

Sources

  • CVE.orgVulnerability recordCVE-2023-53116

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-53116

    30-day exploitation probability 54.0%

    first.org
  • EUVDVulnerability recordEUVD-2025-13149

    In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after f

    euvd.enisa.europa.eu
  • NIST NVDVulnerability recordCVE-2023-53116

    In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.