Search threats, CVEs… ⌘K
← Back to CVE intelligence
CVE intelligence

CVE-2024-2757

Vulnerability intelligence

Published Apr 29, 2024Sources checked Sep 30, 2026
7.5HIGHCVSS out of 10
What this means

Review the available evidence

CVE-2024-2757 and is rated High severity with a CVSS score of 7.5. 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

CISA KEVNot listedBased on the latest collected catalog
EPSS1.9%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview

What is CVE-2024-2757?

In PHP 8.3.* before 8.3.5, function mb_encode_mimeheader() runs endlessly for some inputs that contain long strings of non-space characters followed by a space. This could lead to a potential DoS attack if a hostile user sends data to an application that uses this function.