Vulnerability Details : CVE-2021-41556

Potential exploit
sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script, it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous functionality such as File System functions has been disabled. An attacker might abuse this bug to target (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through video games that embed a Squirrel Engine.
Published 2022-07-28 21:15:08
Updated 2022-12-09 16:35:44
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2021-41556

Exploit prediction scoring system (EPSS) score for CVE-2021-41556

EPSS FAQ
0.40%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-41556

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
10.0
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.9
6.0
 NIST

CWE ids for CVE-2021-41556

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-41556

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