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Vulnerabilities

Vulnerability · CVE-2025-40364

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit th

Published Apr 18, 2025 · catalog updated Aug 5, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2025-40364. EPSS is 0.28%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.28%
Remediation
Version ranges on file
Affected products
vendor Linux Linux c7fb19428d67dd0a2a78a4f237af01d39c78dc5a <a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3

In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.

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.

  • vendor Linux Linux c7fb19428d67dd0a2a78a4f237af01d39c78dc5a <a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3c7fb19428d67dd0a2a78a4f237af01d39c78dc5a <a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3

How to fix CVE-2025-40364

What to do

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

Should you patch?

No confirmed exploitation is on record for CVE-2025-40364. EPSS is 0.28%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux c7fb19428d67dd0a2a78a4f237af01d39c78dc5a <a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3 c7fb19428d67dd0a2a78a4f237af01d39c78dc5a <a94592ec30ff67dc36c424327f1e0a9ceeeb9bd3. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.28%. 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. Apr 18, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.

  2. Aug 5, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.

Sources

  • CVE.orgVulnerability recordCVE-2025-40364

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-40364

    30-day exploitation probability 0.3%

    first.org
  • EUVDVulnerability recordEUVD-2025-11841

    In the Linux kernel, the following vulnerability has been resolved: io_uring: fix io_req_prep_async with provided buffers io_req_prep_async() can import provided buffers, commit the ring state by giving up on that before, it'll be reimported later if needed.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.