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NTAP-20250530-0001 — CVE-2025-31115 XZ Utils Vulnerability in NetApp Products

Published 2025-05-30 · Updated 2026-09-25 · Status: Interim · Exploitation: Public · Severity: HIGH 8.7 · ONTAP affected: Yes

Official advisory: NTAP-20250530-0001 on security.netapp.com ↗. Affected versions, fixed releases, and workarounds live there — this page is a summary.

Product family: ONTAP | ONTAP-relevant | highest CVSS: 8.7

CVEs in this advisory

CVE-2025-31115 — HIGH · CVSS 8.7 · site index

What the CVE records say

CVE-2025-31115 — XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after free and writing to an address based on the null pointer plus an offset. Applications and libraries that use the lzma_stream_decoder_mt function are affected. The bug has been fixed in XZ Utils 5.8.1, and the fix has been committed to the v5.4, v5.6, v5.8, and master branches in the xz Git repository. No new release packages will be made from the old stable branches, but a standalone patch is available that applies to all affected releases.

Impact

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

Affected products

ONTAP Select Deploy administration utility

References

https://github.com/tukaani-project/xz/security/advisories/GHSA-6cc8-p5mm-29w2 ↗

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.