Medium severity · published Oct 5, 2026
CVE-2026-78413
Velociraptor privilege escalation via SysmonLogForward client monitoring artifact
5.5
CVSS
0.2%
EPSS
No
On KEV
Description
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).
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
High
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VE
Velociraptor · Rapid7
before 0.77.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78413
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78413
docs.velociraptor.app
http://docs.velociraptor.app/announcements/advisories/cve-2026-78413
github.com
https://github.com/Velocidex/velociraptor/commit/7906c82fad728010f2fe1d0555b99dbaba3ce88f
More from Velociraptor
9.9
CVE-2026-19072
Velociraptor Investigator reaches SuperUser via hunt EffectivePrincipal
9.9
CVE-2026-19583
Velociraptor Required Permissions bypass by using client monitoring queries
9.6
CVE-2026-18972
Velociraptor authenticated identity-spoofing vulnerability
9.1
CVE-2026-6290
Velociraptor Query() Plugin Misapplies Permissions To Orgs
8.9
CVE-2026-19200
Velociraptor Analyst overwrites live built-in artifacts through verify()
