CVE-2026-19189

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: Elevated riskExposed: 0

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

A security flaw has been discovered in Power Sofware PowerISO 9.3.0.0. Affected by this issue is some unknown functionality in the library C:\Windows\System32\drivers\scdemu.sys of the component Kernel Driver. The manipulation results in improper privilege management. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
51(Track*)
EG Risk 51/100SSVC: 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
Severity78% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 12, 2026

Advisory Details (1)

Auto-updated Aug 7, 2026
No patch confirmed yet.
generic

PowerISO 9.3.0.0 Kerne... | Winslow Blog

https://winslow1984.com/books/cve-collection/page/poweriso-9300-kernel-driver-6900-local-privilege-escalation-via-arbitrary-registry-write-or-deletion

Vendor Advisories for CVE-2026-19189(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 59× 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 14:18 UTCGHSA enrichment
  2. 2026-08-20 01:42 UTCEG score recompute
  3. 2026-08-20 01:42 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 13:25 UTCGHSA enrichment
  6. 2026-08-19 01:05 UTCEG score recompute
  7. 2026-08-19 01:05 UTCGHSA enrichment
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-18 12:48 UTCGHSA enrichment
  10. 2026-08-17 23:49 UTCEG score recompute
  11. 2026-08-17 23:49 UTCGHSA enrichment
  12. 2026-08-17 13:47 UTCEPSS rescore
  13. 2026-08-17 11:32 UTCGHSA enrichment
  14. 2026-08-16 23:16 UTCEG score recompute
  15. 2026-08-16 23:16 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 11:00 UTCEG score recompute
  18. 2026-08-16 11:00 UTCGHSA enrichment
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 22:44 UTCGHSA enrichment
  21. 2026-08-15 10:27 UTCEG score recompute
  22. 2026-08-15 10:27 UTCGHSA enrichment
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 22:10 UTCGHSA enrichment
  25. 2026-08-14 09:54 UTCEG score recompute
Show 34 more
  1. 2026-08-14 09:54 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-13 21:37 UTCGHSA enrichment
  4. 2026-08-13 09:20 UTCGHSA enrichment
  5. 2026-08-12 21:04 UTCGHSA enrichment
  6. 2026-08-12 19:06 UTCEG score recompute
  7. 2026-08-12 19:06 UTCGHSA enrichment
  8. 2026-08-12 13:50 UTCEPSS rescore
  9. 2026-08-12 06:50 UTCGHSA enrichment
  10. 2026-08-11 18:33 UTCGHSA enrichment
  11. 2026-08-11 06:17 UTCEG score recompute
  12. 2026-08-11 06:17 UTCGHSA enrichment
  13. 2026-08-11 00:00 UTCEPSS rescore
  14. 2026-08-10 18:01 UTCGHSA enrichment
  15. 2026-08-10 05:44 UTCGHSA enrichment
  16. 2026-08-09 17:28 UTCEG score recompute
  17. 2026-08-09 17:28 UTCGHSA enrichment
  18. 2026-08-09 13:46 UTCEPSS rescore
  19. 2026-08-09 05:12 UTCGHSA enrichment
  20. 2026-08-08 16:56 UTCEG score recompute
  21. 2026-08-08 16:56 UTCGHSA enrichment
  22. 2026-08-08 16:37 UTCEPSS rescore
  23. 2026-08-08 04:39 UTCEG score recompute
  24. 2026-08-08 04:39 UTCGHSA enrichment
  25. 2026-08-07 16:23 UTCEG score recompute
  26. 2026-08-07 16:23 UTCGHSA enrichment
  27. 2026-08-07 16:22 UTCNVD updateCVSS v4 → 7.1
  28. 2026-08-07 15:42 UTCMITRE cvelistV5CVSS v4 → 8.5
  29. 2026-08-07 15:34 UTCEG score recompute
  30. 2026-08-07 15:34 UTCGHSA enrichment
  31. 2026-08-07 03:18 UTCEG score recompute
  32. 2026-08-07 03:17 UTCNVD updateCVSS v4 → 7.1
  33. 2026-08-07 02:18 UTCEG score recompute
  34. 2026-08-07 02:18 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-19189?
CVE-2026-19189 is a high vulnerability published on August 7, 2026. A security flaw has been discovered in Power Sofware PowerISO 9.3.0.0. Affected by this issue is some unknown functionality in the library C:\Windows\System32\drivers\scdemu.sys of the component Kernel Driver. The manipulation results in improper privilege management. The attack is only possible…
When was CVE-2026-19189 disclosed?
CVE-2026-19189 was first published in the National Vulnerability Database on August 7, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19189 actively exploited?
CVE-2026-19189 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 98.5% of all scored CVEs.
What is the CVSS score of CVE-2026-19189?
CVE-2026-19189 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-19189?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19189, 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

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