CVE-2025-6273: WebAssembly wabt binary-reader-objdump.cc LogOpcode assertion
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. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. 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".
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-6273?
CVE-2025-6273 is classified as a problematic vulnerability affecting WebAssembly wabt.
How do I fix CVE-2025-6273?
To fix CVE-2025-6273, update WebAssembly wabt to a version later than 1.0.37.
What systems are affected by CVE-2025-6273?
CVE-2025-6273 affects WebAssembly wabt versions up to and including 1.0.37.
What causes the CVE-2025-6273 vulnerability?
The CVE-2025-6273 vulnerability is caused by an issue in the LogOpcode function of src/binary-reader-objdump.cc.
Is local access required to exploit CVE-2025-6273?
Yes, local access is required to exploit CVE-2025-6273.