CVE-2022-1071

HIGH
Published Mar 26, 20224y ago · Modified Jun 17, 20262w ago
8.2 CVSS 3.1
High
Find Similar
Published Mar 26, 2022 4y ago
Last Modified Jun 17, 2026 2w ago

Description

User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.

CVSS Details

Base Score
8.2
Exploitability
1.5
Impact
6.0
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability High

Threat Intelligence

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

Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 1

VendorProductVersionRange
mrubymruby* ≤3.1

References 2

  • github.com https://github.com/mruby/mruby/commit/aaa28a508903041dd7399d4159a8ace9766b022f
    PatchThird Party Advisory
  • huntr.dev https://huntr.dev/bounties/6597ece9-07af-415b-809b-919ce0a17cf3
    ExploitPatchThird Party Advisory

Remediation

  • github.com https://github.com/mruby/mruby/commit/aaa28a508903041dd7399d4159a8ace9766b022f
    PatchThird Party Advisory
  • huntr.dev https://huntr.dev/bounties/6597ece9-07af-415b-809b-919ce0a17cf3
    ExploitPatchThird Party Advisory