WebAssembly wabt 1.0.33 has an Out-of-Bound Memory Read in in…
Priority MEDIUM 58CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
WebAssembly wabt 1.0.33 has an Out-of-Bound Memory Read in in DataSegment::IsValidRange(), which lead to segmentation fault.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00222 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webassembly:webassembly_binary_toolkit:1.0.33:*:*:*:*:*:*:* | 1.0.33 | Vulnerable | WebAssembly |
- cpe:2.3:a:webassembly:webassembly_binary_toolkit:1.0.33:*:*:*:*:*:*:* Versions 1.0.33 Vulnerable ·WebAssembly
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-46331
- 2026-10-03 Alias added: GHSA-p567-4mpc-fq6p
References
More Webassembly Binary Toolkit vulnerabilities
- TI-2023-15165 An issue in wasm2c 1.0.32, wasm2wat 1.0.32, wasm-decompile 1.0.32, and wasm-validate… CVSS 3.1HIGH 7.5
- TI-2023-15164 WebAssembly wat2wasm v1.0.32 allows attackers to cause a libc++abi.dylib crash by putting '@' before a quote ("). CVSS 3.1MEDIUM 5.5
- TI-2023-24938 WebAssembly wabt 1.0.33 contains an Out-of-Bound Memory Write in DataSegment::Drop(), which lead to segmentation fault. CVSS 3.1MEDIUM 5.5
- TI-2025-02727 WebAssembly wabt binary-reader-interp.cc BeginFunctionBody null pointer dereference CVSS 4.0LOW 2.3
Sources
- CVE-2023-46331 · CVE Program
- CVE-2023-46331 · NVD
- FIRST EPSS
- GHSA-p567-4mpc-fq6p · GitHub Advisory Database · CC BY 4.0
- CVE-2023-46331 · 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