Cesanta Frozen NULL Pointer Dereference Vulnerability Allowing Denial-of-Service

Vulnerability

A NULL pointer dereference vulnerability has been identified in Cesanta Frozen versions prior to 1.7. This vulnerability allows an attacker to cause a crash in the component that embeds the library by sending a maliciously crafted JSON input.

Impact

Exploitation of this vulnerability can lead to a denial-of-service condition on the affected component.

Remediation

Users are advised to update to Cesanta Frozen version 1.7.

Added: Jun 9, 2025, 7:46 PM
Updated: Jun 9, 2025, 7:46 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
2.5
exploitability
7.4
remediation
7.7
relevance
0.0
threat
0.0
urgency
2.9
incentive
5.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.