CVE-2021-45946

MEDIUM
Published Jan 1, 20224y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jan 1, 2022 4y ago
Last Modified Jun 17, 2026 1w ago

Description

Wasm3 0.5.0 has an out-of-bounds write in CompileBlock (called from Compile_LoopOrBlock and CompileBlockStatements).

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
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
Public Exploit Known
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=33555
    ExploitIssue TrackingThird Party Advisory
  • github.com https://github.com/google/oss-fuzz-vulns/blob/main/vulns/wasm3/OSV-2021-678.yaml
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.