CVE intelligence

CVE-2023-26819

Vulnerability intelligence

Published Apr 19, 2025Sources checked Sep 29, 2026

2.9LOWCVSS out of 10

What this means

Review the available evidence

CVE-2023-26819 and is rated Low severity with a CVSS score of 2.9. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

CBL-Mariner Releases Release Notes

Vendor-listed releases

1.7.0-3

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2023-26819?

cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.