CVE-2024-11235

Reference counting in php_request_shutdown causes Use-After-Free

HIGH
8.1
CVSS Score
Published: April 4, 2025 at 05:51 PM UTC
Updated: June 17, 2026 at 06:57 AM UTC
1 product affected across 1 vendorPHP

Using PHP by PHP Group?

Get instant alerts when new vulnerabilities affect PHP - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.1
Exploit prediction
EPSS 1%
SSVC
PoC

Description

In PHP versions 8.3.* before 8.3.19 and 8.4.* before 8.4.5, a code sequence involving __set handler or ??=  operator and exceptions can lead to a use-after-free vulnerability. If the third party can control the memory layout leading to this, for example by supplying specially crafted inputs to the script, it could lead to remote code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PHP· PHPdrupal
95%
8.3.* ≤ v < 8.3.198.3.0 ≤ v < 8.3.198.4.* ≤ v < 8.4.58.4.0 ≤ v < 8.4.58.3.*8.4.*
Affected range stops below 8.3.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.4.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-416

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card