PT-2025-49481

CVE-2023-53751

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Published

2023-04-21

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Updated

2026-10-13

Description by

CVSS 3.1
9.8
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Linux kernel contains a flaw within the CIFS implementation related to the TCP Server Info::hostname component. Specifically, the hostname may be updated during reconnect attempts, creating a potential use-after-free condition if accessed outside of the reconnect process. This could lead to system instability or compromise.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Vendors
Affected products
Related identifiers
ALSA-2025:19447
CLSA-2026-1791780738
CLSA-2026-1791858083
RHSA-2024:2394
RHSA-2025:19447
RHSA-2026:1512
RHSA-2026:1886
RHSA-2026:1909
RHSA-2026:1946
RHSA-2026:2490
RHSA-2026:2535
RHSA-2026:2573
RHSA-2026:2577
SUSE-SU-2026:0263-1
SUSE-SU-2026:0317-1
SUSE-SU-2026:0411-1
SUSE-SU-2026:0473-1
SUSE-SU-2026:0617-1
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