What’s Vulnerable › Vulnerabilities

CVE-2021-41959

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-03 · updated 2026-06-17
• Weakness: CWE-401

Description

JerryScript Git version 14ff5bf does not sufficiently track and release allocated memory via jerry-core/ecma/operations/ecma-regexp-object.c after RegExp, which causes a memory leak.

Affected products

• JerryScript: all versions

References

• https://github.com/jerryscript-project/jerryscript/issues/4781
• https://github.com/jerryscript-project/jerryscript/pull/4787
• https://github.com/jerryscript-project/jerryscript/issues/4781
• https://github.com/jerryscript-project/jerryscript/pull/4787

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