Detections
Analytics
AlmaLinux 9 : samba (ALSA-2026:25049)
critical Nessus Plugin ID 320648
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:25049 advisory.* samba: Missing access check on reparse point operations (CVE-2026-1933)
* samba: vfs_worm does not block directory modification (CVE-2026-2340)
* samba: group policy certificate enrollment uses <http://> without validation (CVE-2026-3012)
* samba: Samba: Remote Code Execution in printing subsystem via unescaped job description (CVE-2026-4480)
* ngtcp2: ngtcp2: Denial of service via stack buffer overflow during QUIC handshake (CVE-2026-40170)
* samba: Remote Code Execution in SAMR (CVE-2026-4408)
Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Critical
ID: 320648
File Name: alma_linux_ALSA-2026-25049.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 6/11/2026
Updated: 6/11/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-4480
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:alma:linux:libsmbclient, p-cpe:/a:alma:linux:libsmbclient-devel, p-cpe:/a:alma:linux:libwbclient, p-cpe:/a:alma:linux:libwbclient-devel, p-cpe:/a:alma:linux:python3-samba, p-cpe:/a:alma:linux:python3-samba-test, p-cpe:/a:alma:linux:samba, p-cpe:/a:alma:linux:samba-client, p-cpe:/a:alma:linux:samba-client-libs, p-cpe:/a:alma:linux:samba-common, p-cpe:/a:alma:linux:samba-common-libs, p-cpe:/a:alma:linux:samba-common-tools, p-cpe:/a:alma:linux:samba-devel, p-cpe:/a:alma:linux:samba-krb5-printing, p-cpe:/a:alma:linux:samba-libs, p-cpe:/a:alma:linux:samba-pidl, p-cpe:/a:alma:linux:samba-test, p-cpe:/a:alma:linux:samba-test-libs, p-cpe:/a:alma:linux:samba-vfs-iouring, p-cpe:/a:alma:linux:samba-winbind, p-cpe:/a:alma:linux:samba-winbind-clients, p-cpe:/a:alma:linux:samba-winbind-krb5-locator, p-cpe:/a:alma:linux:samba-winbind-modules, p-cpe:/a:alma:linux:samba-winexe, p-cpe:/a:alma:linux:ldb-tools, p-cpe:/a:alma:linux:libldb, p-cpe:/a:alma:linux:libldb-devel, p-cpe:/a:alma:linux:python3-ldb, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:libnetapi, p-cpe:/a:alma:linux:libnetapi-devel, p-cpe:/a:alma:linux:python3-samba-dc, p-cpe:/a:alma:linux:samba-dc-libs, p-cpe:/a:alma:linux:samba-dcerpc, p-cpe:/a:alma:linux:samba-ldb-ldap-modules, p-cpe:/a:alma:linux:samba-tools, p-cpe:/a:alma:linux:samba-usershares, p-cpe:/a:alma:linux:samba-gpupdate
Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/10/2026
Vulnerability Publication Date: 4/16/2026
Reference Information
CVE: CVE-2026-1933, CVE-2026-2340, CVE-2026-3012, CVE-2026-40170, CVE-2026-4408, CVE-2026-4480