OpenEDR 2.5.1.0 Kernel Driver csrss.exe improper authorization

Summaryinfo

A vulnerability classified as critical was found in OpenEDR 2.5.1.0. This vulnerability affects unknown code of the file csrss.exe of the component Kernel Driver. The manipulation results in improper authorization. This vulnerability was named CVE-2025-69783. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability classified as critical has been found in OpenEDR 2.5.1.0. Affected is an unknown function of the file csrss.exe of the component Kernel Driver. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A local attacker can bypass OpenEDR's 2.5.1.0 self-defense mechanism by renaming a malicious executable to match a trusted process name (e.g., csrss.exe, edrsvc.exe, edrcon.exe). This allows unauthorized interaction with the OpenEDR kernel driver, granting access to privileged functionality such as configuration changes, process monitoring, and IOCTL communication that should be restricted to trusted components. While this issue alone does not directly grant SYSTEM privileges, it breaks OpenEDR's trust model and enables further exploitation leading to full local privilege escalation.

The advisory is shared for download at scavengersecurity.com. This vulnerability is traded as CVE-2025-69783 since 01/09/2026. The exploitability is told to be easy. The attack needs to be approached locally. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/21/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-208750). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• OpenEDR

Version

• 2.5.1.0

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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