An issue was discovered in mjs (mJS: Restricted JavaScript engine), ES6 (JavaScript version 6). There is Integer overflow in gc_compact_strings() in mjs.c.
Published 2022-07-26 13:15:09
Updated 2022-07-28 16:43:41
Source MITRE
View at NVD,
Vulnerability category: Overflow

Exploit prediction scoring system (EPSS) score for CVE-2021-33439

Probability of exploitation activity in the next 30 days EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-33439

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen

CWE ids for CVE-2021-33439

  • The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
    Assigned by: (Primary)
  • The product dereferences a pointer that it expects to be valid but is NULL.
    Assigned by: (Primary)

References for CVE-2021-33439

Products affected by CVE-2021-33439

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