CVE-2025-6273

Name of the Vulnerable Software and Affected Versions WebAssembly wabt versions 1.0.37 and earlier

Description A vulnerability was found in the function LogOpcode of the file src/binary-reader-objdump.cc. The manipulation leads to a reachable assertion. Local access is required to approach this attack. 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".

Recommendations For versions 1.0.37 and earlier, consider restricting access to the LogOpcode function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.