CVE-2026-51808
Critical
Description
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded function in source/core/interface/decoder.cpp
SeverityCritical
CVSS9.8
Exploit probability—
ProductOpenHTJ2K
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-120CWE-120
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenHTJ2K | v ≤ 0.18.4 | — |
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