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NTAP-20260617-0009 — CVE-2026-34180 OpenSSL Vulnerability in NetApp Products

Published 2026-06-17 · Updated 2026-09-11 · Status: Interim · Exploitation: Public · Severity: HIGH 7.5 · ONTAP affected: Yes

Official advisory: NTAP-20260617-0009 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: Active IQ Unified Manager · SolidFire / NetApp HCI · NetApp Console / BlueXP · ONTAP · Brocade SAN firmware · Other NetApp products | ONTAP-relevant | highest CVSS: 7.5

CVEs in this advisory

CVE-2026-34180 — HIGH · CVSS 7.5 · site index

What the CVE records say

CVE-2026-34180 — Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms. Impact summary: The heap buffer over-read may crash the application (Denial of Service) or to load into the decoded ASN.1 object contents of memory beyond the end of the input buffer. More typically such ASN.1 elements would instead be truncated. An integer truncation in OpenSSL's ASN.1 decoder causes the content length of an ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the worst case the truncated length is treated as a request to scan the binary content for a terminating zero byte, possibly causing OpenSSL to read either less than or beyond the end of the allocated buffer. Applications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or any other d2i_* decoding function are affected. OpenSSL's own command-line tools are not vulnerable, as data read through the BIO layer is checked before it reaches the affected code. The issue only affects 64-bit Unix and Unix-like platforms; 32-bit platforms and 64-bit Windows are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

Impact

Successful exploitation of this vulnerability could lead to Denial of Service (DoS).

Affected products

Active IQ Unified Manager for Linux
Active IQ Unified Manager for VMware vSphere
Management Services for Element Software and NetApp HCI
NetApp Console Agent Container (adc)
NetApp Console Agent Container (cbs-backend)
NetApp HCI Baseboard Management Controller (BMC) - H610S
ONTAP Select Deploy administration utility
Brocade Fabric Operating System Firmware
Brocade SAN Navigator (SANnav)
FAS/AFF BIOS - A900/9500
Global File Cache
NetApp Console Agent Container (alert-service-client)

References

What to do

Check the affected products listed above against the official advisory's affected-versions table — that is where the exact ONTAP 9 release, ONTAP tool, or management product versions are named.
If affected and a fixed release exists, plan the upgrade — see the ONTAP upgrade runbook.
If exploitation is listed as "active", treat remediation as urgent and review exposure (management LIFs, ONTAP S3, SnapMirror endpoints).
Harden in parallel: security hardening baseline and ransomware protection on ONTAP.