CVE-2025-6274

low-risk
Published 2025-06-19

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.

Do I need to act?

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0.06% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.3/10 Low
LOCAL / LOW complexity

Affected Products (1)

Wabt

Affected Vendors

Webassembly

References (6)

Exploit https://github.com/WebAssembly/wabt/issues/2598
Exploit https://github.com/user-attachments/files/20191325/wabt_crash_4.txt
Permissions Required https://vuldb.com/?ctiid.313278
Third Party Advisory https://vuldb.com/?id.313278
Third Party Advisory https://vuldb.com/?submit.593016
Exploit https://github.com/WebAssembly/wabt/issues/2598
18
/ 100
low-risk
Severity 13/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal