What’s Vulnerable › Vulnerabilities

CVE-2020-22886

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-13 · updated 2026-06-17
• Weakness: CWE-120

Description

Buffer overflow vulnerability in function jsG_markobject in jsgc.c in mujs before 1.0.8, allows remote attackers to cause a denial of service.

Affected products

• MuJS: before 1.0.8 — fixed in 1.0.8

How to fix

Upgrade to a fixed version: MuJS 1.0.8. Check the vendor advisory for mitigations.

References

• https://github.com/ccxvii/mujs/issues/134
• https://github.com/ccxvii/mujs/issues/134

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