What’s Vulnerable › Vulnerabilities

CVE-2018-11598

• Severity: high (CVSS 7.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-05-31 · updated 2026-06-17
• Weakness: CWE-125

Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Information Disclosure with user crafted input files via a Buffer Overflow or Out-of-bounds Read during syntax parsing of certain for loops in jsparse.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/bf4416ab9129ee3afd56739ea4e3cd0da5484b6b
• https://github.com/espruino/Espruino/files/2025956/test_0.txt
• https://github.com/espruino/Espruino/files/2025963/test_1.txt
• https://github.com/espruino/Espruino/files/2025968/test_2.txt
• https://github.com/espruino/Espruino/issues/1437
• https://github.com/espruino/Espruino/commit/bf4416ab9129ee3afd56739ea4e3cd0da5484b6b
• https://github.com/espruino/Espruino/files/2025956/test_0.txt
• https://github.com/espruino/Espruino/files/2025963/test_1.txt
• https://github.com/espruino/Espruino/files/2025968/test_2.txt
• https://github.com/espruino/Espruino/issues/1437

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