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CVE-2025-6274— WebAssembly wabt binary-reader-interp.cc OnDataCount resource consumption

Quick assessment

Affected
WebAssembly wabt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WebAssembly wabt是WebAssembly开源的一个WebAssembly二进制工具包。 WebAssembly wabt 1.0.37及之前版本存在资源管理错误漏洞，该漏洞源于文件src/interp/binary-reader-interp.cc中函数OnDataCount存在资源消耗。

CVSS 3.3 · Low EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2025-6274

Vulnerability Information
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Vulnerability Title
WebAssembly wabt binary-reader-interp.cc OnDataCount resource consumption
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
WebAssembly wabt 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WebAssembly wabt是WebAssembly开源的一个WebAssembly二进制工具包。 WebAssembly wabt 1.0.37及之前版本存在资源管理错误漏洞，该漏洞源于文件src/interp/binary-reader-interp.cc中函数OnDataCount存在资源消耗。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WebAssembly wabt 1.0.0 -

II. Public POCs for CVE-2025-6274

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III. Intelligence Information for CVE-2025-6274

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Other References for CVE-2025-6274 (1)

Same Patch Batch · WebAssembly · 2025-06-19 · 3 CVEs total

CVE-2025-6275 3.3 LOW WebAssembly wabt binary-reader-interp.cc GetFuncOffset use after free
CVE-2025-6273 3.3 LOW WebAssembly wabt binary-reader-objdump.cc LogOpcode assertion

IV. Related Vulnerabilities

Same product: wabt
Same vendor: WebAssembly
Same weakness: CWE-400

V. Comments for CVE-2025-6274

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