CVE-2026-3012

mediumpriority · track · 27OT risk · elevatedEPSS 0.003 · 18 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.26% (18th) EPSS

CVSS 6.8 · medium

Is it mine?

61 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

cvss

Technical severity, 0–10. One row per scoring source.

8.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.2–8

v3.16.8mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 1.6 · impact 5.2

v3.18highAV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.18highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondary · ENISA EU

v3.18highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondary · secalert@redhat.com USexploitability 1.6 · impact 5.8

v3.18highCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Nsecondaryexploitability 1.6 · impact 5.8

v3.16.2mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-345USCWE-345US

affected products (61)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell Avamarall versionscert_bundDEcpe:/a:dell:avamar:-
Dell NetWorkerall versionscert_bundDEcpe:/a:dell:networker:-
Fedora Linuxall versionscert_bundDEcpe:/o:fedoraproject:fedora:-
IBM QRadar SIEMall versionscert_bundDEcpe:/a:ibm:qradar_siem:-
IBM Storage Scale 6.0.0.0-6.0.1.0all versionscert_bundDEcpe:/a:ibm:spectrum_scale:6.0.0.0_-_6.0.1.0
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Open Source Open Source Samba <4.22.10< 4.22.10cert_bundDE
Open Source Open Source Samba <4.23.8< 4.23.8cert_bundDE
Open Source Open Source Samba <4.24.3< 4.24.3cert_bundDE
Open Source Samba< 4.22.10cert_bundDE
Open Source Samba< 4.23.8cert_bundDE
Open Source Samba< 4.24.3cert_bundDE
Red Hat OpenShift≤ Container Platform <4.21.22cert_bundDE

showing 20 of 61

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1686Samba: Mehrere SchwachstellenDeutsch2026-05-26csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Samba ausnutzen, um beliebigen Programmcode auszuführen, um einen Denial of Service Angriff durchzuführen, um Dateien zu manipulieren, und um Sicherheitsvorkehrungen zu umgehen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-05-27modified 2026-10-26

references (48)

External citations — patches, advisories, analysis.

scry

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