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Vulnerabilities

Vulnerability · CVE-2023-53061

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails.

Published May 2, 2025 · catalog updated May 11, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2023-53061. EPSS is 0.20%. 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
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.20%
Remediation
Version ranges on file
Affected products
vendor Linux Linux e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <2624b445544ffc1472ccabfb6ec867c199d4c95c

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().

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 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <2624b445544ffc1472ccabfb6ec867c199d4c95ce2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <2624b445544ffc1472ccabfb6ec867c199d4c95c

How to fix CVE-2023-53061

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-2023-53061. EPSS is 0.20%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <2624b445544ffc1472ccabfb6ec867c199d4c95c e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 <2624b445544ffc1472ccabfb6ec867c199d4c95c. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.20%. 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 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().

Sources

  • CVE.orgVulnerability recordCVE-2023-53061

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-53061

    30-day exploitation probability 0.20%

    first.org
  • EUVDVulnerability recordEUVD-2025-13199

    In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.