CVE-2026-63419High· 7.8▾ MidnightPoC availableOpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public im…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 42.9 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 19.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.2%
Last analysed / modified upstream
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public imagespec while the decoder retains a 32-bit internal pixel size. iffinput::read_native_tile() copies according to m_header.pixel_bytes() rather than imagespec::tile_bytes(true), and a failed read can leave m_buf nonempty so a later call copies partially initialized data into the undersized caller buffer, resulting in a heap out-of-bounds write and memory corruption. The affected implementation is identified by src/iff.imageio/iffinput.cpp, IffInput::read_native_tile(), ImageSpec::tile_bytes(true), m_header.pixel_bytes(), ZBUFFER, and m_buf, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-63638High· 8.3OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation
CVE-2026-63422High· 7.8OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation
CVE-2026-67549High· 7.6OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation
CVE-2026-63635Medium· 5.5OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation
CVE-2026-63420Medium· 5.5OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation
CVE-2026-65969Medium· 5.5OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation