CVE-2026-67549 OpenImageIO - Buffer Overflow

OpenImageIO < 3.1.16.0 contains a heap out-of-bounds write caused by improper bit conversion in TIFFInput::read_native_scanline_locked() when processing crafted 1-bit contiguous CMYK TIFF images, letting attackers cause memory corruption, exploit requires crafted TIFF file.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.29% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to version 3.1.16.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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