VulnSocial

CVE-2026-3012Patch(redhat / enterprise_linux)

LOWCVSS 6.8 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch redhat enterprise_linux systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-345

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • enterprise_linux
  • openshift_container_platform
  • samba

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-05-28); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
redhatsamba
Products
enterprise_linuxopenshift_container_platformsamba

3 versions affected across 3 products

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-05-28: 1Mentions · 2026-06-03: 1Patch / Workaround · 2026-05-28: 1Technical Details · 2026-05-28: 105-2806-03
Signal classification2 categories
Patch
150.0%
General
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-05-281
Patch1
2026-06-031
General1
Full discourse2 posts
  • Open Source Security mailing list@oss_security
    Patch

    Samba 4.24.3, 4.23.8, 4.22.10 Security Releases https://www.openwall.com/lists/oss-security/2026/05/27/6 CVE-2026-1933: Missing access checks on reparse point operations CVE-2026-2340: WORM vfs module does not block overwrites CVE-2026-3012: auto-enrolment GPO installing CA certificate over http + next tweet

    Post summary

    The tweet lists three Samba CVEs with concise technical notes and points to security release versions that presumably contain the patches; it lacks any PoC, exploit code, or evidence of active exploitation.

    10000210
    4.6K followersView on X
  • CERT-PY@CERTpy
    General

    ⚠️ Vulnerabilidades en productos Samba ❗ CVE-2026-4480 ❗ CVE-2026-4408 ❗ CVE-2026-3012 ➡️ Más info: https://www.cert.gov.py/vulnerabilidades-en-productos-samba-2/ https://t.co/tDy1a4OFXL

    Post summary

    The post lists three Samba CVEs and provides links for further information, but contains no details on PoC, exploits, active attacks, patches, or technical specifics.

    00000107
    6.7K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
OSredhatenterprise_linux7.0--
OSredhatenterprise_linux9.0--
Appredhatopenshift_container_platform4.0--
Appsambasamba---

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