CVE-2025-6274

Public Exploit
WebAssembly wabt binary-reader-interp.cc OnDataCount resource consumption

Description

A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been classified as problematic. Affected is the function OnDataCount of the file src/interp/binary-reader-interp.cc. The manipulation leads to resource consumption. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.

Category

4.8
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: WebAssembly wabt
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.313278 vdb entry technical description third party advisory
https://vuldb.com/?ctiid.313278 vdb entry signature permissions required third party advisory
https://vuldb.com/?submit.593016 vdb entry third party advisory
https://github.com/WebAssembly/wabt/issues/2598 exploit issue tracking
https://github.com/user-attachments/files/20191325/wabt_crash_4.txt exploit

Frequently Asked Questions

What is the severity of CVE-2025-6274?
CVE-2025-6274 has been scored as a medium severity vulnerability.
How to fix CVE-2025-6274?
To fix CVE-2025-6274, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-6274 being actively exploited in the wild?
It is possible that CVE-2025-6274 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-6274?
CVE-2025-6274 affects WebAssembly wabt.
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