wasm2c v1.0.29 was discovered to contain an abort in CWriter::Write.
Priority MEDIUM 58CWE-434Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.
Summary
wasm2c v1.0.29 was discovered to contain an abort in CWriter::Write.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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:wabt:1.0.29:*:*:*:*:*:*:* | 1.0.29 | Vulnerable | WebAssembly |
- cpe:2.3:a:webassembly:wabt:1.0.29:*:*:*:*:*:*:* Versions 1.0.29 Vulnerable ·WebAssembly
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-43283
- 2026-10-03 Alias added: GHSA-835w-28hj-65xx
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-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
- TI-2025-14055 WebAssembly wabt wasm-decompile InsertNode memory corruption CVSS 4.0MEDIUM 4.8
Sources
- CVE-2022-43283 · CVE Program
- CVE-2022-43283 · NVD
- FIRST EPSS
- GHSA-835w-28hj-65xx · GitHub Advisory Database · CC BY 4.0
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