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CVE-2023-53745

11
FAUCET Score

CVE-2023-53745 describes a memory leak vulnerability within the Linux kernel's User-Mode Linux (UML) vector configuration. Specifically, it occurs when the uml_parse_vector_ifspec function returns NULL, leading to unreleased memory. This vulnerability has no assigned CVSS score, indicating a potentially low severity, and there is no information regarding attack vector or complexity. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
4.17CNA affecteddefault affected
LinuxLinux
>= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < 276a7298af6a801e9a865282605a79303365ec66, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < 5c49fb5ad01104acc584405572abf6616d45148e, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < 634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < 6480c3a12755bf85d6738ab60967e89b809c701a, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < 8f88c73afe481f93d40801596927e8c0047b6d96, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < c8583b4655aab44a9796b5c4a681ddcc6fe2f0d0, >= 49da7e64f33e80edffb1a9eeb230fa4c3f42dffb, < f2b9c4544e3bd60f353732291300097b0e8d8454CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Advisories (1)

redhatCVE-2023-53745

kernel: um: vector: Fix memory leak in vector_config

Dec 8, 2025

References

git.kernel.org / stable/c/276a7298af6a801e9a865282605a79303365ec66
git.kernel.org / stable/c/5c49fb5ad01104acc584405572abf6616d45148e
git.kernel.org / stable/c/634a9c139cc1362f6a9cc6cbfe442dbb60ff9f3f
git.kernel.org / stable/c/6480c3a12755bf85d6738ab60967e89b809c701a
git.kernel.org / stable/c/8f88c73afe481f93d40801596927e8c0047b6d96
git.kernel.org / stable/c/c8583b4655aab44a9796b5c4a681ddcc6fe2f0d0
git.kernel.org / stable/c/f2b9c4544e3bd60f353732291300097b0e8d8454