CVE-2025-6273 | WebAssembly wabt up to 1.0.37 binary-reader-objdump.cc LogOpcode assertion (Issue 2574)

June 19, 2025 Yanac

A vulnerability was found in WebAssembly wabt up to 1.0.37 and classified as problematic. This issue affects the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to reachable assertion.

The identification of this vulnerability is CVE-2025-6273. Local access is required to approach this attack. Furthermore, there is an exploit available.

The real existence of this vulnerability is still doubted at the moment.

The code maintainer explains that this issue might not affect “real world wasm programs”.VulDB Recent EntriesRead More