ZDI-CAN-26250: ZDI-25-200: Exim Use-After-Free Local Privilege Escalation Vulnerability

Published Apr 7, 2025

Updated

This vulnerability allows local attackers to escalate privileges on affected installations of Exim. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-30232.

Affected Software

1 affected component

Exim Exim

Event History

Apr 7, 2025

Advisory Published

via ZDI·05:00 AM

Data Sourced

via ZDI·05:00 AM

Description

Frequently Asked Questions

What is the severity of ZDI-CAN-26250?

The severity of ZDI-CAN-26250 is rated 7.8, indicating a high risk of privilege escalation.

How do I fix ZDI-CAN-26250?

To fix ZDI-CAN-26250, you should apply the latest security patch from Exim that addresses the privilege escalation issue.

Who is affected by ZDI-CAN-26250?

Exim users with installations that allow local code execution are affected by ZDI-CAN-26250.

What type of vulnerability is ZDI-CAN-26250?

ZDI-CAN-26250 is a privilege escalation vulnerability that allows local attackers to gain elevated permissions.

Can ZDI-CAN-26250 be exploited remotely?

No, ZDI-CAN-26250 requires the attacker to have local access to the system to exploit it.