CVE-2023-30087: Cesanta Mjs

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Buffer Overflow vulnerability found in Cesanta MJS v.1.26 allows a local attacker to cause a denial of service via the mjs_mk_string function in mjs.c.

Affected products

• Cesanta Mjs: version 1.26 only

Published 2023-05-09. Last modified 2026-06-17.