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CVE-2023-53751

12
FAUCET Score

CVE-2023-53751 addresses a potential use-after-free vulnerability in the Linux kernel's CIFS implementation, specifically within the TCP_Server_Info::hostname component. This flaw could arise during reconnect operations where the hostname is updated, leading to memory corruption. While no CVSS score is provided, its FAUCET Risk Score is low at 7/100, and its EPSS score is also very low, suggesting a minimal likelihood of exploitation. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
5.0CNA affecteddefault affected
LinuxLinux
>= 93d5cb517db39e8af8d1292f9e785e4983b7f708, < 0b08c4c499200be67d54c439d56e5ea866869945, >= 93d5cb517db39e8af8d1292f9e785e4983b7f708, < 64d62ac6d6514cba1305bd08e271ec1843bdd612, >= 93d5cb517db39e8af8d1292f9e785e4983b7f708, < 90c49fce1c43e1cc152695e20363ff5087897c09, >= 93d5cb517db39e8af8d1292f9e785e4983b7f708, < c511954bf142fe1995aec3c739a9f1a76990283aCNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.17%
Probability of exploitation in next 30 days
EPSS Percentile
6.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Patch Available

Vendor Patches (17)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-553.82.1.el8_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: kernel-0:4.18.0-193.183.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: kernel-0:4.18.0-305.184.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnFixed in: kernel-0:4.18.0-305.184.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportFixed in: kernel-0:4.18.0-372.179.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-372.179.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-372.179.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-477.128.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-477.128.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-427.13.1.el9_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsFixed in: kernel-0:5.14.0-70.165.1.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsFixed in: kernel-rt-0:5.14.0-70.165.1.rt21.237.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsFixed in: kernel-0:5.14.0-284.155.1.el9_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsFixed in: kernel-rt-0:5.14.0-284.155.1.rt14.440.el9_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-53751Moderate

kernel: Linux kernel Bluetooth L2CAP: Kernel crash due to use-after-free via race condition

Dec 8, 2025

References

git.kernel.org / stable/c/0b08c4c499200be67d54c439d56e5ea866869945
git.kernel.org / stable/c/64d62ac6d6514cba1305bd08e271ec1843bdd612
git.kernel.org / stable/c/90c49fce1c43e1cc152695e20363ff5087897c09
git.kernel.org / stable/c/c511954bf142fe1995aec3c739a9f1a76990283a