Highest advisory severityHigh 2 vendors · 2 advisories

CVE-2026-23066

Linux Kernel Vulnerability in NetApp Products

CVE-2026-23066: Linux Kernel Vulnerability in NetApp Products. Not in the CISA KEV catalog. High advisory severity (CVSS 7.8, 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-2026-23066 key facts

CISA KEV: Not listed (catalog checked Oct 30, 2026)
Highest advisory severity: High
CVSS base score: 7.8 (NetApp), 7.4 (Red Hat)
Weakness: CWE-416
Fixed releases: NetApp: ONTAP tools for VMware vSphere 10: 10.5P2
Red Hat: RHSA-2026:9112
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Feb 4, 2026 · Updated Sep 24, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-23066; bulletin-wide values are not repeated here.

Is CVE-2026-23066 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-23066 is not in the CISA KEV catalog (checked Oct 30, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-23066?

Upgrade to a fixed release named by the vendor:

NetApp: ONTAP tools for VMware vSphere 10: 10.5P2
Red Hat: RHSA-2026:9112

Update affected NetApp products to a fixed release: ONTAP tools for VMware vSphere 10: 10.5P2. (NetApp)
Update the affected package(s) to the fixed version shipped in RHSA-2026:9112 (`sudo dnf update` / `yum update`). (Red Hat)

Vendor advisory comparison

NetApp

1 advisory

Advisory severityHigh7.8
High [CVE-2026-23066] Linux Kernel Vulnerability in NetApp Products
NTAP-20260911-0019Source published Sep 11, 2026Source updated Sep 24, 2026
Linux kernel versions 4.11 prior to 6.18.8 and 6.19-rc1 through 6.19-c6 are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). Affected products: ONTAP tools for VMware vSphere 10. 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
ONTAP tools for VMware vSphere 10
Source-reported affected versions
4.11
6.18.8
6.19
Source-reported fixed versions
ONTAP tools for VMware vSphere 10: 10.5P2
Mitigation guidance
Update affected NetApp products to a fixed release: ONTAP tools for VMware vSphere 10: 10.5P2.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityHigh7.4
High [CVE-2026-23066] Linux kernel: Denial of Service via unsafe requeue in rxrpc_recvmsg
CVE-2026-23066Source published Feb 4, 2026
Linux kernel: Denial of Service via unsafe requeue in rxrpc_recvmsg. Red Hat rates this moderate (CVSS 7.4). Weakness: CWE-416. Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:9112 — update the affected packages (`sudo dnf update`).
Related products — impact not confirmed
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 1
kernel-rt
Linux Kernel
Source-reported affected versions
kernel-0:5.14.0-570.108.1.el9_6
kernel-0:6.12.0-55.69.1.el10_0
kernel-0:5.14.0-427.121.1.el9_4
kernel-0:5.14.0-284.166.1.el9_2
1 more entries in the full advisory.
Source-reported fixed versions
RHSA-2026:9112
Mitigation guidance
Update the affected package(s) to the fixed version shipped in RHSA-2026:9112 (`sudo dnf update` / `yum update`).
Full advisory and evidence Open source bulletin

All NetApp advisories

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