CVE-2021-38592

HIGH
Published Aug 12, 20214y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Aug 12, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

Wasm3 0.5.0 has a heap-based buffer overflow in op_Const64 (called from EvaluateExpression and m3_LoadModule).

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
wasm3_projectwasm30.5.0any

References 2

  • bugs.chromium.org https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33554
    Issue TrackingThird Party Advisory
  • github.com https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-676.yaml
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.