An issue was discovered in WAVM before 2018-09-16. The run function in Programs/wavm/wavm.cpp does not check whether there is Emscripten memory to store the command-line arguments passed by the input WebAssembly file's main function, which allows attackers to cause a denial of service (application crash by NULL pointer dereference) or possibly have unspecified other impact by crafting certain WebAssembly files.
Conclusion & alert: CVE-2018-17293 is rated High Exploit Risk (77/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.62%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.30% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.32% | 1.62% | +1.30% |
| 2 | 2025-03-30 | 0.62% | 0.32% | -0.30% |
| 3 | 2025-03-29 | — | 0.62% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| webassembly_virtual_machine_project | webassembly_virtual_machine | < 2018-09-16 | cpe:2.3:a:webassembly_virtual_machine_project:webassembly_virtual_machine:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/WAVM/WAVM/commit/31d670b6489e6d708c3b04b911cdf14ac43d846d | Patch Third Party Advisory |
| https://github.com/WAVM/WAVM/issues/110#issuecomment-421764693 | Exploit Patch Third Party Advisory |