Rapid7 Velociraptor up to 0.77.2 Windows.Sysinternals.SysmonLogForward privileges management

Summaryinfo

A vulnerability identified as very critical has been detected in Rapid7 Velociraptor up to 0.77.2. This issue affects some unknown processing of the component Windows.Sysinternals.SysmonLogForward. The manipulation leads to privileges management. This vulnerability is documented as CVE-2026-78413. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Rapid7 Velociraptor up to 0.77.2 and classified as very critical. This issue affects some unknown functionality of the component Windows.Sysinternals.SysmonLogForward. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Velociraptor allows collection of VQL queries packaged into Artifacts from endpoints. These artifacts can be used to do anything and usually run with elevated permissions. To limit access to some dangerous artifact, Velociraptor allows for those to require high permissions like EXECVE to launch. The `Windows.Sysinternals.SysmonLogForward` is a monitoring artifact used to forward sysmon events to the server. The artifact allows the user to specify an arbitrary binary path as a parameter, and did not enforce an additional required permission, allowing users with COLLECT_CLIENT permissions (normally given by the "Investigator" role) to collect it from endpoints and run a different binary program than the installed sysmon binary. To successfully exploit this vulnerability the user must already have access to collect artifacts from the endpoint (i.e. have the COLLECT_CLIENT given typically by the "Investigator" role).

The advisory is shared at docs.velociraptor.app. The identification of this vulnerability is CVE-2026-78413 since 08/24/2026. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/05/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 0.77.3 eliminates this vulnerability.

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Productinfo

Vendor

• Rapid7

Name

• Velociraptor

Version

• 0.77.0
• 0.77.1
• 0.77.2

License

• commercial

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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