CVE-2026-15430

MEDIUMPre-NVD 6.26.2—
EchelonGraph scoreHIGH confidence

Score 6.2 from GitHub Security Advisory published 2026-08-03. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.2Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Improper access control in the IRP_MJ_WRITE command interface in Wellbia XIGNCODE3 xhunter2.sys, version 2026.6.1.192, allows a local, unprivileged attacker to achieve local privilege escalation to NT AUTHORITY\SYSTEM, extract credentials from PPL-protected lsass.exe, and terminate PPL-protected security processes.

CVSS v3
6.2
EG Score
6.2(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

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
Severity62% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 3, 2026

References (1)

Vendor Advisories for CVE-2026-15430(1)

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

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 54× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 19:14 UTCGHSA enrichment
  3. 2026-08-19 19:25 UTCEG score recompute
  4. 2026-08-19 19:25 UTCGHSA enrichment
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 19:26 UTCEG score recompute
  7. 2026-08-18 19:26 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 19:36 UTCEG score recompute
  10. 2026-08-17 19:36 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-16 17:58 UTCEG score recompute
  13. 2026-08-16 17:58 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 02:14 UTCEPSS rescore
  16. 2026-08-15 18:09 UTCEG score recompute
  17. 2026-08-15 18:09 UTCGHSA enrichment
  18. 2026-08-15 01:30 UTCEPSS rescore
  19. 2026-08-14 18:19 UTCEG score recompute
  20. 2026-08-14 18:19 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-13 18:30 UTCGHSA enrichment
  23. 2026-08-12 18:41 UTCEG score recompute
  24. 2026-08-12 18:41 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
Show 29 more
  1. 2026-08-11 18:52 UTCEG score recompute
  2. 2026-08-11 18:52 UTCGHSA enrichment
  3. 2026-08-11 13:42 UTCEPSS rescore
  4. 2026-08-11 00:00 UTCEPSS rescore
  5. 2026-08-10 19:03 UTCGHSA enrichment
  6. 2026-08-09 19:14 UTCEG score recompute
  7. 2026-08-09 19:14 UTCGHSA enrichment
  8. 2026-08-09 13:46 UTCEPSS rescore
  9. 2026-08-08 19:25 UTCEG score recompute
  10. 2026-08-08 19:25 UTCGHSA enrichment
  11. 2026-08-08 16:37 UTCEPSS rescore
  12. 2026-08-07 19:36 UTCEG score recompute
  13. 2026-08-07 19:36 UTCGHSA enrichment
  14. 2026-08-06 19:47 UTCEG score recompute
  15. 2026-08-06 19:47 UTCGHSA enrichment
  16. 2026-08-06 13:46 UTCEPSS rescore
  17. 2026-08-05 19:58 UTCEG score recompute
  18. 2026-08-05 19:58 UTCGHSA enrichment
  19. 2026-08-05 19:17 UTCEPSS rescore
  20. 2026-08-04 20:09 UTCEG score recompute
  21. 2026-08-04 20:09 UTCGHSA enrichment
  22. 2026-08-04 15:10 UTCEPSS rescore
  23. 2026-08-03 20:19 UTCGHSA enrichment
  24. 2026-08-03 19:38 UTCEG score recompute▲ 6.20
  25. 2026-08-03 19:38 UTCGHSA enrichment
  26. 2026-08-03 19:38 UTCMITRE cvelistV5CVSS v3 → 6.2 · severity → MEDIUM
  27. 2026-08-03 16:35 UTCNVD update
  28. 2026-08-03 15:28 UTCEG score recompute
  29. 2026-08-03 15:28 UTCMITRE cvelistV5first tracked

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCBlackSnufkin/AxHunter
    First seen Aug 5, 2026

    PoCs for Wellbia XIGNCODE3 anti-cheat xhunter driver family - xhunter1.sys v2023.12.7.78 and xhunter2.sys v2026.6.1.192 (CVE-2026-15430, CVE-2026-3609).

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15430?
CVE-2026-15430 is a medium vulnerability published on August 3, 2026. Improper access control in the IRPMJWRITE command interface in Wellbia XIGNCODE3 xhunter2.sys, version 2026.6.1.192, allows a local, unprivileged attacker to achieve local privilege escalation to NT AUTHORITY\SYSTEM, extract credentials from PPL-protected lsass.exe, and terminate PPL-protected…
When was CVE-2026-15430 disclosed?
CVE-2026-15430 was first published in the National Vulnerability Database on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15430 actively exploited?
CVE-2026-15430 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.7% of all scored CVEs.
What is the CVSS score of CVE-2026-15430?
CVE-2026-15430 has a CVSS v3.1 base score of 6.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-15430?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15430, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-15430

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