CVE-2026-78413

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-10-05. A secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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 v3
5.5
EG Score
5.5MEDIUMhigh confidence
EG Risk
25
EG Risk 25/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 5, 2026

Last Modified

October 6, 2026

Advisory Details (2)

Auto-updated Oct 5, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 7906c82fad72 (Velocidex/velociraptor)

Fix landed in Velocidex/velociraptor commit 7906c82fad72 — awaiting tagged release

https://github.com/Velocidex/velociraptor/commit/7906c82fad728010f2fe1d0555b99dbaba3ce88f
generic

CVE-2026-78413 Velociraptor privilege escalation via SysmonLogForward client monitoring artifact – Velociraptor - Digging deeper!

http://docs.velociraptor.app/announcements/advisories/cve-2026-78413

Vendor Advisories for CVE-2026-78413(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-09 15:12 UTCEG score recompute
  3. 2026-10-09 15:12 UTCGHSA enrichment
  4. 2026-10-08 17:13 UTCEPSS rescore
  5. 2026-10-08 15:27 UTCEG score recompute
  6. 2026-10-08 15:27 UTCGHSA enrichment
  7. 2026-10-07 23:48 UTCEPSS rescore
  8. 2026-10-07 15:18 UTCGHSA enrichment
  9. 2026-10-06 15:33 UTCEG score recompute
  10. 2026-10-06 15:33 UTCGHSA enrichment
  11. 2026-10-06 15:18 UTCEPSS rescore
  12. 2026-10-05 20:26 UTCEG score recompute
  13. 2026-10-05 20:26 UTCGHSA enrichment
  14. 2026-10-05 19:22 UTCEG score recompute
  15. 2026-10-05 19:22 UTCGHSA enrichment
  16. 2026-10-05 18:23 UTCEG score recompute
  17. 2026-10-05 17:56 UTCEG score recompute
  18. 2026-10-05 17:55 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78413?
CVE-2026-78413 is a medium vulnerability published on October 5, 2026. 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.…
When was CVE-2026-78413 disclosed?
CVE-2026-78413 was first published on October 5, 2026, with the most recent update on October 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78413 actively exploited?
CVE-2026-78413 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-78413?
CVE-2026-78413 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-78413?
An upstream fix for CVE-2026-78413 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-78413 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-78413

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