What’s Vulnerable › Vulnerabilities

CVE-2018-11595

• Severity: high (CVSS 7.8 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-119

Description

Espruino before 1.99 allows attackers to cause a denial of service (application crash) and a potential Escalation of Privileges with a user crafted input file via a Buffer Overflow during syntax parsing, because strncat is misused.

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/0a7619875bf79877907205f6bee08465b89ff10b
• https://github.com/espruino/Espruino/files/2019210/test_0.txt
• https://github.com/espruino/Espruino/files/2019216/test_2.txt
• https://github.com/espruino/Espruino/files/2019220/test_4.txt
• https://github.com/espruino/Espruino/issues/1425
• https://github.com/espruino/Espruino/commit/0a7619875bf79877907205f6bee08465b89ff10b
• https://github.com/espruino/Espruino/files/2019210/test_0.txt
• https://github.com/espruino/Espruino/files/2019216/test_2.txt
• https://github.com/espruino/Espruino/files/2019220/test_4.txt
• https://github.com/espruino/Espruino/issues/1425

Get alerted when CVE-2018-11595 or the next vulnerability affects your stack