wasm3 v0.5.0 was discovered to contain a global buffer overflow which leads to segmentation fault via the function "PreserveRegisterIfOccupied" in wasm3/source/m3_compile.c.
Conclusion & alert: CVE-2024-34252 is rated High Exploit Risk (68/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.48%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). 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 | 2026-05-25 | 0.41% | 0.48% | +0.07% |
| 2 | 2026-04-05 | 0.53% | 0.41% | -0.11% |
| 3 | 2025-11-21 | — | 0.53% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| wasm3_project | wasm3 | 0.5.0 | cpe:2.3:a:wasm3_project:wasm3:0.5.0:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/wasm3/wasm3/issues/483 | Exploit Issue Tracking Vendor Advisory |