Kea 2.4.x-2.4.1/2.6.x-2.6.2/2.7.x-2.7.8 API Arbitrary File Overwrite
CVE-2025-32802 Published on May 28, 2025
Insecure handling of file paths allows multiple local attacks
Kea configuration and API directives can be used to overwrite arbitrary files, subject to permissions granted to Kea. Many common configurations run Kea as root, leave the API entry points unsecured by default, and/or place the control sockets in insecure paths.
This issue affects Kea versions 2.4.0 through 2.4.1, 2.6.0 through 2.6.2, and 2.7.0 through 2.7.8.
Vulnerability Analysis
CVE-2025-32802 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and a high impact on availability.
Weakness Types
External Control of File Name or Path
The software allows user input to control or influence paths or file names that are used in filesystem operations.
Creation of Temporary File in Directory with Insecure Permissions
The software creates a temporary file in a directory whose permissions allow unintended actors to determine the file's existence or otherwise access that file. On some operating systems, the fact that the temporary file exists may be apparent to any user with sufficient privileges to access that directory. Since the file is visible, the application that is using the temporary file could be known. If one has access to list the processes on the system, the attacker has gained information about what the user is doing at that time. By correlating this with the applications the user is running, an attacker could potentially discover what a user's actions are. From this, higher levels of security could be breached.
Products Associated with CVE-2025-32802
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Affected Versions
ISC Kea:- Version 2.4.0, <= 2.4.1 is affected.
- Version 2.6.0, <= 2.6.2 is affected.
- Version 2.7.0, <= 2.7.8 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.