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Linux Distros Unpatched Vulnerability : CVE-2026-2340

medium Nessus Plugin ID 316785

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - A flaw was found in Samba's vfs_worm module. The module is intended to provide write-once, read-many (WORM) protections by preventing modification of files after a configurable grace period. Due to insufficient validation during rename operations, an authenticated user with write access to a share could overwrite a protected file by renaming a newly created file over the existing WORM-protected file.
 (CVE-2026-2340)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-2340

https://security-tracker.debian.org/tracker/CVE-2026-2340

Plugin Details

Severity: Medium

ID: 316785

File Name: unpatched_CVE_2026_2340.nasl

Version: 1.10

Type: Local

Agent: unix

Family: Misc.

Published: 5/26/2026

Updated: 6/11/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 1.7

Temporal Score: 1.4

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:P/A:N

CVSS Score Source: CVE-2026-2340

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:samba-ldb-ldap-modules, p-cpe:/a:centos:centos:samba-dc, p-cpe:/a:redhat:enterprise_linux:samba-client-libs, p-cpe:/a:centos:centos:samba-test, p-cpe:/a:redhat:enterprise_linux:samba-ldb-ldap-modules, p-cpe:/a:centos:centos:samba-python-test, p-cpe:/a:redhat:enterprise_linux:samba-pidl, p-cpe:/a:centos:centos:samba-vfs-glusterfs, p-cpe:/a:centos:centos:ctdb, p-cpe:/a:redhat:enterprise_linux:samba-common-libs, p-cpe:/a:redhat:enterprise_linux:samba-tools, p-cpe:/a:redhat:enterprise_linux:ctdb, p-cpe:/a:centos:centos:samba-test-devel, p-cpe:/a:centos:centos:python3-samba-test, p-cpe:/a:redhat:enterprise_linux:libnetapi-devel, p-cpe:/a:centos:centos:samba-tools, p-cpe:/a:redhat:enterprise_linux:libsmbclient, p-cpe:/a:redhat:enterprise_linux:samba-test-devel, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:samba, p-cpe:/a:centos:centos:samba-krb5-printing, p-cpe:/a:centos:centos:python3-samba-devel, p-cpe:/a:redhat:enterprise_linux:python3-samba-dc, p-cpe:/a:redhat:enterprise_linux:samba-common, p-cpe:/a:centos:centos:samba-dc-libs, p-cpe:/a:redhat:enterprise_linux:samba-vfs-glusterfs, p-cpe:/a:centos:centos:samba-winbind-krb5-locator, p-cpe:/a:centos:centos:samba-python, p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba-libs, p-cpe:/a:centos:centos:samba-devel, p-cpe:/a:redhat:enterprise_linux:samba-winexe, p-cpe:/a:redhat:enterprise_linux:samba-test-libs, p-cpe:/a:centos:centos:samba-common-tools, p-cpe:/a:centos:centos:samba, p-cpe:/a:centos:centos:samba-winbind-modules, p-cpe:/a:centos:centos:libwbclient-devel, p-cpe:/a:centos:centos:samba-usershares, p-cpe:/a:centos:centos:samba-pidl, p-cpe:/a:redhat:enterprise_linux:samba-common-tools, p-cpe:/a:redhat:enterprise_linux:samba-python, p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel, p-cpe:/a:redhat:enterprise_linux:python3-samba, p-cpe:/a:centos:centos:python3-samba, p-cpe:/a:redhat:enterprise_linux:python3-samba-test, p-cpe:/a:redhat:enterprise_linux:samba-krb5-printing, p-cpe:/a:redhat:enterprise_linux:samba-winbind-modules, p-cpe:/a:centos:centos:samba-dcerpc, p-cpe:/a:redhat:enterprise_linux:samba-test, p-cpe:/a:redhat:enterprise_linux:samba-python-test, p-cpe:/a:centos:centos:samba-vfs-iouring, p-cpe:/a:centos:centos:samba-client-libs, p-cpe:/a:centos:centos:libnetapi, p-cpe:/a:redhat:enterprise_linux:ctdb-devel, p-cpe:/a:debian:debian_linux:samba, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:libwbclient-devel, p-cpe:/a:redhat:enterprise_linux:libwbclient, p-cpe:/a:centos:centos:samba-common-libs, p-cpe:/a:centos:centos:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba-devel, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:samba-dc, p-cpe:/a:centos:centos:python3-samba-dc, p-cpe:/a:redhat:enterprise_linux:samba-vfs-iouring, p-cpe:/a:centos:centos:samba-winbind, p-cpe:/a:redhat:enterprise_linux:samba-client, p-cpe:/a:centos:centos:samba-winexe, p-cpe:/a:centos:centos:libsmbclient-devel, p-cpe:/a:centos:centos:libsmbclient, p-cpe:/a:centos:centos:samba-libs, p-cpe:/a:redhat:enterprise_linux:libnetapi, p-cpe:/a:centos:centos:ctdb-devel, p-cpe:/a:redhat:enterprise_linux:samba-dc-libs, cpe:/o:centos:centos:8, p-cpe:/a:redhat:enterprise_linux:samba-dcerpc, p-cpe:/a:centos:centos:libwbclient, p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator, p-cpe:/a:centos:centos:samba-client, p-cpe:/a:centos:centos:samba-test-libs, p-cpe:/a:redhat:enterprise_linux:samba-usershares, p-cpe:/a:centos:centos:libnetapi-devel, p-cpe:/a:redhat:enterprise_linux:ctdb-tests, p-cpe:/a:redhat:enterprise_linux:samba-winbind, p-cpe:/a:centos:centos:samba-common, p-cpe:/a:centos:centos:ctdb-tests, p-cpe:/a:redhat:enterprise_linux:python3-samba-devel

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2026-2340