CVE-2015-4590: Arduino JSON Project Arduino JSON

Medium severity, CVSS 5.0. EPSS: 2.6% chance of exploitation in the next 30 days.

The extractFrom function in Internals/QuotedString.cpp in Arduino JSON before 4.5 allows remote attackers to cause a denial of service (crash) via a JSON string with a \ (backslash) followed by a terminator, as demonstrated by "\\\0", which triggers a buffer overflow and over-read.

Affected products

• Arduino JSON Project Arduino JSON: up to and including 4.4

Published 2015-06-22. Last modified 2026-06-17.