CVE-2025-2584: WebAssembly wabt binary-reader-interp.cc GetReturnCallDropKeepCount heap-based overflow

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-03-21 · updated 2026-06-17
Weakness: CWE-119

Description

A vulnerability was found in WebAssembly wabt 1.0.36. It has been declared as critical. This vulnerability affects the function BinaryReaderInterp::GetReturnCallDropKeepCount of the file wabt/src/interp/binary-reader-interp.cc. The manipulation leads to heap-based buffer overflow. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

Affected products

WebAssembly wabt: 1.0.36

References

https://github.com/WebAssembly/wabt/issues/2557
https://github.com/WebAssembly/wabt/issues/2557#issue-2900405517
https://vuldb.com/?ctiid.300544
https://vuldb.com/?id.300544
https://vuldb.com/?submit.515406

Get alerted when CVE-2025-2584 or the next vulnerability affects your stack