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CVE-2025-1218

3.4 · LOW

The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them.

Published Sep 25, 2026phpCWE-122EPSS 0.28%

Overview

CVE-2025-1218 is a low-severity vulnerability affecting php php. It was published on September 25, 2026 and has a CVSS 3.1 base score of 3.4 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.4, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
phpphp>= 8.2.0, < 8.2.34Affected

References

GitHubgithub.com/php/php-src/security/advisories/GHSA-r6x9-5r99-36j7

How CyberStrike helps

Frequently asked questions

What is CVE-2025-1218?

CVE-2025-1218 is a low-severity vulnerability affecting php php. It was published on September 25, 2026 and has a CVSS 3.1 base score of 3.4 (LOW).

How severe is CVE-2025-1218?

This vulnerability has a CVSS 3.1 base score of 3.4, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-1218?

Check the references section for vendor advisories and patches from php. Update php to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-1218?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-1218 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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