PT-2026-43438 · Samba+2 · Samba+2

Osidb Bzimport · Published 2026-05-26 · Updated 2026-05-28 · CVE-2026-3012

Positive Technologies (AI Summary)

CVSS v3.1

8.0

High

Base vector

AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Samba (affected versions not specified)

Description A flaw exists in the handling of certificate auto-enrollment Group Policy. When this feature is enabled, Samba may retrieve a CA certificate via an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker capable of intercepting or redirecting network traffic could provide a malicious certificate authority certificate, which may lead to the interception or spoofing of trusted communications.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Insufficient Verification of Data Authenticity

Weakness Enumeration

CWE-345

Related Identifiers

BDU:2026-07422

CVE-2026-3012

OPENSUSE-SU-2026:10884-1

USN-8306-1

Affected Products

Linuxmint

Samba

Ubuntu

References · 31

• https://osv.dev/vulnerability/USN-8306-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-1933 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-3238 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3012 · Security Note
• https://security-tracker.debian.org/tracker/DSA-6297-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8306-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-3012 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-4480 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10884-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-3012 · Security Note
• https://ubuntu.com/security/CVE-2026-2340 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-3012 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-07422 · Security Note
• https://ubuntu.com/security/CVE-2026-4408 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-2340 · Note