CVE intelligence

CVE-2025-1218

Vulnerability intelligence

Published Sep 25, 2026Sources checked Sep 29, 2026

3.4LOWCVSS out of 10

What this means

Review the available evidence

CVE-2025-1218 and is rated Low severity with a CVSS score of 3.4. 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

Release Notes

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-2025-1218?

The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined behaviour and can crash the process.