CVE-2026-4408: Samba Vulnerability in NetApp Products
Not in the CISA KEV catalog. Critical advisory severity (CVSS 10, 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.
CVE-2026-4408 key facts
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- Critical
- CVSS base score
- 10 (NetApp), 9 (Red Hat)
- Weakness
- CWE-78
- Fixed releases
- Red Hat: RHSA-2026:29863
- VulniPulse record
- Published · Updated
Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-4408; bulletin-wide values are not repeated here.
Is CVE-2026-4408 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-4408 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-2026-4408?
Upgrade to a fixed release named by the vendor:
- Red Hat: RHSA-2026:29863
- Update the affected package(s) to the fixed version shipped in RHSA-2026:29863 (`sudo dnf update` / `yum update`). (Red Hat)
Get an email when NetApp publishes the next one.
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Vendor advisory comparison
NetApp
1 advisory- Advisory severityCritical10.0
Critical [CVE-2026-4408] Samba Vulnerability in NetApp Products
NTAP-20260527-0001Source published Source updated
Samba versions prior to 4.22.10, 4.23.8 and 4.24.3 are susceptible to a vulnerability which when successfully exploited could lead to unauthenticated Remote Code Execution. Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). 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
- 4.22.10
- 4.23.8
- 4.24.3
- 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.
Red Hat
1 advisory- Advisory severityCritical9.0
Critical [CVE-2026-4408] Remote Code Execution in SAMR
CVE-2026-4408Source published
Remote Code Execution in SAMR. Red Hat rates this important (CVSS 9). Weakness: CWE-78. Affected package(s): samba, rhcos. Resolved in Red Hat advisory RHSA-2026:29863 — update the affected packages (`sudo dnf update`).
- Affected products in this advisory
- Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
18 more entries in the full advisory.
- Source-reported affected versions
- samba-0:4.13.3-12.el8_4.1
- samba-0:4.19.4-16.el8_10
- samba-0:4.23.5-10.el9_8
- rhcos-4.20.9.6.202606241928-0
8 more entries in the full advisory.
- Source-reported fixed versions
- RHSA-2026:29863
- Mitigation guidance
- Update the affected package(s) to the fixed version shipped in RHSA-2026:29863 (`sudo dnf update` / `yum update`).
More NetApp advisories
- CVE-2026-114583Nov 6, 2026CPython Vulnerability in NetApp Products
- CVE-2026-72493Nov 6, 2026Linux Kernel Vulnerability in NetApp Products
- CVE-2026-101308Nov 6, 2026FreeBSD Vulnerability in NetApp Products
- CVE-2026-111943Nov 6, 2026Golang Vulnerability in NetApp Products
- CVE-2026-101307Nov 6, 2026FreeBSD Vulnerability in NetApp Products
- CVE-2026-100075Nov 6, 2026Linux Kernel Vulnerability in NetApp Products
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