What’s Vulnerable › Vulnerabilities

CVE-2018-11596

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-31 · updated 2026-06-17
• Weakness: CWE-119

Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) with a user crafted input file via a Buffer Overflow during syntax parsing because a check for '\0' is made for the wrong array element in jsvar.c.

Affected products

• Espruino: before 1.99 — fixed in 1.99

How to fix

Upgrade to a fixed version: Espruino 1.99. Check the vendor advisory for mitigations.

References

• https://github.com/espruino/Espruino/commit/ce1924193862d58cb43d3d4d9dada710a8361b89
• https://github.com/espruino/Espruino/issues/1435
• https://github.com/espruino/Espruino/commit/ce1924193862d58cb43d3d4d9dada710a8361b89
• https://github.com/espruino/Espruino/issues/1435

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