Buffer overflow in Webassembly Wabt
CVE-2025-2584
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (40.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Webassembly Wabt — versions 1.0.36
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/WebAssembly/wabt/issues/2557 (issue-tracking, Exploit, Issue Tracking)
- github.com/WebAssembly/wabt/issues/2557 (issue-tracking, Exploit, exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-2584?
- CVE-2025-2584 is a medium-severity vulnerability in Webassembly Wabt, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.0/10. Published 2025-03-21.
- How severe is CVE-2025-2584?
- Medium severity. CVSS v3 base score is 5.0 out of 10.