PT-2026-43437 · Samba+3 · Samba+3

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CVE-2026-2340

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Published

2026-05-26

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Updated

2026-09-03

CVSS v2.0

7.5

High

VectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Name of the Vulnerable Software and Affected Versions Samba (affected versions not specified)
Description A flaw exists in the vfs worm module, which is designed to provide write-once, read-many (WORM) protections by preventing file modifications after a specific grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share can overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

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Weakness Enumeration

Related Identifiers

ALSA-2026:22963
ALSA-2026:25049
AZL-89145
BDU:2026-07421
CVE-2026-2340
ECHO-8127-8787-DF33
OPENSUSE-SU-2026:10884-1
OPENSUSE-SU-2026:20905-1
OPENSUSE-SU-2026:21540-1
RHSA-2026:22963
RHSA-2026:25049
RHSA-2026:25979
SUSE-SU-2026:22045-1
SUSE-SU-2026:22080-1
SUSE-SU-2026:23003-1
SUSE-SU-2026:23129-1
SUSE-SU-2026:23152-1
USN-8306-1

Affected Products

Linuxmint
Rocky Linux
Samba
Ubuntu