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Vulnerabilities

Vulnerability · CVE-2023-53745

In the Linux kernel, the following vulnerability has been resolved: um: vector: Fix memory leak in vector_config If the return value of the uml_parse_vector_ifspec function is NULL

Published Dec 8, 2025 · catalog updated May 11, 2026 · Linux Linux

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-53745. EPSS is 0.21%. 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.

Same product and reporting

Severity
None0.0
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f

In the Linux kernel, the following vulnerability has been resolved: um: vector: Fix memory leak in vector_config If the return value of the uml_parse_vector_ifspec function is NULL, we should call kfree(params) to prevent memory leak.

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 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f

How to fix CVE-2023-53745

  • Upgrade

    CVE-2023-53745 lists a fix boundary at 634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

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-2023-53745. EPSS is 0.21%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb <634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. 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. Dec 8, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: um: vector: Fix memory leak in vector_config If the return value of the uml_parse_vector_ifspec function is NULL, we should call kfree(params) to prevent memory leak.

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: um: vector: Fix memory leak in vector_config If the return value of the uml_parse_vector_ifspec function is NULL, we should call kfree(params) to prevent memory leak.

Sources

  • CVE.orgVulnerability recordCVE-2023-53745

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-53745

    30-day exploitation probability 0.21%

    first.org
  • EUVDVulnerability recordEUVD-2023-60083

    In the Linux kernel, the following vulnerability has been resolved: um: vector: Fix memory leak in vector_config If the return value of the uml_parse_vector_ifspec function is NULL, we should call kfree(params) to prevent memory leak.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 1, 2026
  • CVE.orgOct 26, 2026
  • EUVDOct 26, 2026