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Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-58221

Samba Vulnerability in NetApp Products

CVE-2026-58221: Samba Vulnerability in NetApp Products. Not in the CISA KEV catalog. High advisory severity (CVSS 8.8, NetApp).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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CVE-2026-58221 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
High
CVSS base score
8.8 (NetApp), 8.8 (Red Hat)
CVSS vector
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (Red Hat)
Weakness
CWE-284
Vendor advisories
2 from NetApp, Red Hat
VulniPulse record
Published · Updated

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-58221; bulletin-wide values are not repeated here.

Is CVE-2026-58221 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-58221 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-58221?

The tracked advisories that cover only this CVE do not list a fixed release yet. That does not mean no fix exists; check each vendor source below.

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityHigh8.8

    High [CVE-2026-58221] Samba Vulnerability in NetApp Products

    NTAP-20260821-0017Source published Source updated

    Samba AD DC versions 4.0.0 and higher are susceptible to a vulnerability which when successfully exploited permits a domain takeover by allowing low-privilege authenticated LDAP access modifications to internal LDB special DNs. Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status. NetApp states there is no workaround available at this time.

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityHigh8.8

    High [CVE-2026-58221] authenticated LDAP access to internal LDB special DNs permits domain takeover

    CVE-2026-58221Source published Source updated

    A flaw was found in Samba Active Directory Domain Controller (AD DC). Improper authorization checks allow an authenticated low-privilege domain user to modify internal LDB special records through LDAP. By altering the DSDB module configuration, an attacker can bypass directory ACL enforcement on new LDAP connections and elevate privileges, potentially leading to complete domain compromise. ``` Red Hat Enterprise Linux (RHEL) context: Default installations of Red Hat Enterprise Linux (RHEL) are not affected. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-284. Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift…

    Affected products in this advisory
    No product details extracted. Check the source bulletin.
    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Full advisory and evidenceOpen source bulletin

More NetApp advisories

All NetApp advisories

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