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Highest advisory severityMedium 2 vendors · 2 advisories

CVE-2025-26465: OpenSSH Vulnerability in NetApp Products

Not in the CISA KEV catalog. Medium advisory severity (CVSS 6.8, 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.

NVD detail CVE.org

CVE-2025-26465 key facts

CISA KEV
Not listed (catalog checked )
Highest advisory severity
Medium
CVSS base score
6.8 (NetApp), 6.8 (Red Hat)
CVSS vector
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N (Red Hat)
Weakness
CWE-390
Fixed releases
  • NetApp: Active IQ Unified Manager for VMware vSphere: 9.16P2
  • Red Hat: openssh-0:8.0p1-26.el8_10, openssh-0:8.7p1-45.el9, openssh-0:8.7p1-38.el9_4.5, discovery/discovery-server-rhel9:1.14.3-1748529279, RHSA-2025:16823, RHSA-2025:6993 and 2 more in the advisory
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-2025-26465; bulletin-wide values are not repeated here.

Is CVE-2025-26465 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2025-26465 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-2025-26465?

Upgrade to a fixed release named by the vendor:

  • NetApp: Active IQ Unified Manager for VMware vSphere: 9.16P2
  • Red Hat: openssh-0:8.0p1-26.el8_10, openssh-0:8.7p1-45.el9, openssh-0:8.7p1-38.el9_4.5, discovery/discovery-server-rhel9:1.14.3-1748529279, RHSA-2025:16823, RHSA-2025:6993
  • Update affected NetApp products to a fixed release: Active IQ Unified Manager for VMware vSphere: 9.16P2. (NetApp)
  • NetApp HCI Compute Node (Bootstrap OS) has no planned fix; migrate to a supported release or product and consult NetApp's end-of-support notice. (NetApp)
  • This issue can be mitigated by disabling VerifyHostKeyDNS by setting that option to 'no' in an SSH client configuration file (such as /etc/ssh/ssh_config, ~/.ssh/config, or one of the files in the /etc/ssh/ssh_config.d/ directory). This is the default configuration in Red Hat Enterprise Linux. For configurations that require VerifyHostKeyDNS to be enabled (set to either 'yes' or 'ask'), mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (Red Hat)

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Alert me about NetApp

Vendor advisory comparison

NetApp

1 advisory
  • Advisory severityMedium6.8

    Medium [CVE-2025-26465] OpenSSH Vulnerability in NetApp Products

    NTAP-20250228-0003Source published Source updated

    Multiple NetApp products incorporate OpenSSH. OpenSSH versions 6.8p1 through 9.9p1 are susceptible to a vulnerability which when successfully exploited could lead to disclosure of sensitive information or addition or modification of data. Affected products: Active IQ Unified Manager for VMware vSphere, NetApp HCI Compute Node (Bootstrap OS), NetApp SolidFire & HCI Management Node, NetApp SolidFire & HCI Storage Node (Element Software), ONTAP tools for VMware vSphere 9. NetApp reports that one or more additional products remain under investigation; review the canonical advisory for current status.

    Affected products in this advisory
    • Active IQ Unified Manager for VMware vSphere
    • NetApp HCI Compute Node (Bootstrap OS)
    • NetApp SolidFire & HCI Management Node
    • NetApp SolidFire & HCI Storage Node (Element Software)

    1 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • Active IQ Unified Manager for VMware vSphere: 9.16P2
    Mitigation guidance
    • Update affected NetApp products to a fixed release: Active IQ Unified Manager for VMware vSphere: 9.16P2.
    • NetApp HCI Compute Node (Bootstrap OS) has no planned fix; migrate to a supported release or product and consult NetApp's end-of-support notice.
    • ONTAP tools for VMware vSphere 9 has no planned fix; migrate to a supported release or product and consult NetApp's end-of-support notice.
    Full advisory and evidenceOpen source bulletin

Red Hat

1 advisory
  • Advisory severityMedium6.8

    Medium [CVE-2025-26465] machine-in-the-middle attack if verifyhostkeydns is enabled

    CVE-2025-26465Source published Source updated

    A vulnerability was found in OpenSSH when the VerifyHostKeyDNS option is enabled. A machine-in-the-middle attack can be performed by a malicious machine impersonating a legit server. This issue occurs due to how OpenSSH mishandles error codes in specific conditions when verifying the host key. For an attack to be considered successful, the attacker needs to manage to exhaust the client's memory resource first, turning the attack complexity high. This issue is rated as a moderate severity vulnerability instead of important because it requires specific conditions to be exploitable. Second, the attacker must be able to exhaust SSH client memory and trigger out-of-memory condition. Additionally, while the attack allows a machine-in-the-middle (MITM) adversary to trick the client into…

    Affected products in this advisory
    • Red Hat Enterprise Linux 8
    • Red Hat Enterprise Linux 9.4 Extended Update Support
    • Red Hat Discovery 1.14
    • Red Hat Enterprise Linux 6

    3 more entries in the full advisory.

    Source-reported affected versions
    Affected-version details not available in this record.
    Source-reported fixed versions
    • openssh-0:8.0p1-26.el8_10
    • openssh-0:8.7p1-45.el9
    • openssh-0:8.7p1-38.el9_4.5
    • discovery/discovery-server-rhel9:1.14.3-1748529279

    4 more entries in the full advisory.

    Mitigation guidance
    • This issue can be mitigated by disabling VerifyHostKeyDNS by setting that option to 'no' in an SSH client configuration file (such as /etc/ssh/ssh_config, ~/.ssh/config, or one of the files in the /etc/ssh/ssh_config.d/ directory). This is the default configuration in Red Hat Enterprise Linux. For configurations that require VerifyHostKeyDNS to be enabled (set to either 'yes' or 'ask'), mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
    Full advisory and evidenceOpen source bulletin

More NetApp advisories

All NetApp advisories

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