WebAssembly wabt binary-reader-interp.cc GetReturnCallDropKeepCount heap-based overflow
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- High
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| WebAssembly | wabt | 1.0.36 | — | No fix listed | CNA |
- wabt VendorWebAssembly Affected 1.0.36 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webassembly:wabt:1.0.36:*:*:*:*:*:*:* | 1.0.36 | Vulnerable | WebAssembly |
- cpe:2.3:a:webassembly:wabt:1.0.36:*:*:*:*:*:*:* Versions 1.0.36 Vulnerable ·WebAssembly
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 4 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-2584
- 2026-10-03 Alias added: GHSA-7qx5-g5pm-mq66
References
More WebAssembly Wabt vulnerabilities
- TI-2022-21123 wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component… CVSS 3.1HIGH 7.1
- TI-2022-21125 wasm-interp v1.0.29 was discovered to contain an out-of-bounds read via the component… CVSS 3.1HIGH 7.1
- TI-2023-11935 WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::Decompiler::WrapChild. CVSS 3.1MEDIUM 5.5
- TI-2022-21126 wasm2c v1.0.29 was discovered to contain an abort in CWriter::Write. CVSS 3.1MEDIUM 5.5
- TI-2025-02083 WebAssembly wabt Malformed File binary-reader-interp.cc OnExport heap-based overflow CVSS 4.0MEDIUM 5.3
- TI-2025-14056 WebAssembly wabt wasm-decompile VarName out-of-bounds CVSS 4.0MEDIUM 4.8
Sources
- CVE-2025-2584 · CVE Program
- CVE-2025-2584 · NVD
- FIRST EPSS
- GHSA-7qx5-g5pm-mq66 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-2584 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences