CVE-2026-3012

MEDIUM EPSS 16.3%
Published May 27, 20261mo ago · Modified Jun 17, 20261w ago
6.8 CVSS 3.1
Medium
Find Similar
Published May 27, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 Details

Base Score
6.8
Exploitability
1.6
Impact
5.2
Vector string
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Adjacent
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
16.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-345

Affected Products 4

VendorProductVersionRange
redhatopenshift_container_platform4.0any
sambasamba*≥4.16.0  –  <4.21.0
redhatenterprise_linux7.0any
redhatenterprise_linux9.0any

References 7

  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:22644
    Issue Tracking
  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:22963
    Issue Tracking
  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:25049
  • access.redhat.com https://access.redhat.com/errata/RHSA-2026:25979
  • access.redhat.com https://access.redhat.com/security/cve/CVE-2026-3012
    MitigationThird Party Advisory
  • bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2447319
    Issue TrackingThird Party Advisory
  • bugzilla.samba.org https://bugzilla.samba.org/show_bug.cgi?id=16003
    Issue TrackingMitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.