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NTAP-20261016-0003 — CVE-2026-33636 LIBPNG Vulnerability in NetApp Products
Published 2026-10-16 · Updated 2026-10-16 · Status: Interim · Exploitation: Public · Severity: HIGH 7.6 · ONTAP affected: No — other NetApp product
Product family: NetApp Console / BlueXP · SolidFire / NetApp HCI | other NetApp product | highest CVSS: 7.6
CVEs in this advisory
- CVE-2026-33636 — HIGH · CVSS 7.6 · site index
What the CVE records say
CVE-2026-33636 — LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. In versions 1.6.36 through 1.6.55, an out-of-bounds read and write exists in libpng's ARM/AArch64 Neon-optimized palette expansion path. When expanding 8-bit paletted rows to RGB or RGBA, the Neon loop processes a final partial chunk without verifying that enough input pixels remain. Because the implementation works backward from the end of the row, the final iteration dereferences pointers before the start of the row buffer (OOB read) and writes expanded pixel data to the same underflowed positions (OOB write). This is reachable via normal decoding of attacker-controlled PNG input if Neon is enabled. Version 1.6.56 fixes the issue.
Impact
Successful exploitation of this vulnerability could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS).
Affected products
- NetApp Console Agent Container (docker_occm)
- NetApp Console Agent OVA
- NetApp SolidFire & HCI Management Node
- iNetApp SolidFire & HCI Storage Node (Element Software)
References
What to do
- Compare your installed product and version against the affected list above and the official advisory's affected-versions table.
- Apply the fixed release named in the official advisory, or the documented workaround if no fix ships yet.
- Limit management-plane exposure (BMC/management interfaces, web UIs, SNMP) until patched.
- Track follow-ups in the site CVE index and the security RSS feed.
Related reading
- Site CVE index — every CVE we track, split by year
- Security hub — recent NetApp advisories and what changed
- Security hardening baseline — applies to NetApp management planes generally
- Every NetApp advisory published in 2026