CVE-2026-80115

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-04. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation and denial-of-service vulnerability in DirectIo64.sys that allows local attackers to read arbitrary Model-Specific Registers or write zero to any MSR through exposed IOCTLs with insufficient blocklist enforcement. Attackers can exploit the unrestricted write IOCTL to zero out the system call handler MSR, causing an immediate unrecoverable kernel crash on the next system call, or read security-sensitive MSRs used to locate kernel data structures.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 14, 2026

Advisory Details (6)

Auto-updated Sep 4, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

PassMark PerformanceTest, BurnInTest, and OSForensics Kernel Crash via DirectIo64.sys MSR Write IOCTL | Advisories | VulnCheck

https://www.vulncheck.com/advisories/passmark-performancetest-burnintest-and-osforensics-kernel-crash-via-directio64-sys-msr-write-ioctl
generic🟡 PoC Available

Reversing PassMark's DirectIo64.sys · dkom.dev

https://dkom.dev/posts/directio64-disclosure/
generic

OSForensics - What's new version history

https://www.osforensics.com/whats-new.html
generic

PassMark BurnInTest software - PC Reliability and Load Testing

https://www.passmark.com/products/burnintest/history.php
generic

PassMark PerformanceTest version history

https://www.passmark.com/products/performancetest/history.php
generic🟡 PoC Available

GitHub - floppywiggler/directio64-disclosure · GitHub

https://github.com/floppywiggler/directio64-disclosure

Vendor Advisories for CVE-2026-80115(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 19× in last 7d / 41× 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. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 18:58 UTCGHSA enrichment
  3. 2026-09-17 20:22 UTCEG score recompute
  4. 2026-09-17 20:22 UTCGHSA enrichment
  5. 2026-09-16 18:23 UTCEG score recompute
  6. 2026-09-16 18:23 UTCGHSA enrichment
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-15 19:03 UTCEG score recompute
  9. 2026-09-15 19:03 UTCGHSA enrichment
  10. 2026-09-15 03:12 UTCEPSS rescore
  11. 2026-09-15 03:12 UTCEPSS rescore
  12. 2026-09-14 20:27 UTCEG score recompute
  13. 2026-09-14 20:27 UTCGHSA enrichment
  14. 2026-09-14 19:40 UTCEG score recompute
  15. 2026-09-14 19:40 UTCGHSA enrichment
  16. 2026-09-14 11:56 UTCEG score recompute
  17. 2026-09-14 11:56 UTCGHSA enrichment
  18. 2026-09-13 13:20 UTCGHSA enrichment
  19. 2026-09-12 14:44 UTCGHSA enrichment
  20. 2026-09-11 16:08 UTCEG score recompute
  21. 2026-09-11 16:08 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-10 17:27 UTCEG score recompute
  25. 2026-09-10 17:27 UTCGHSA enrichment
Show 16 more
  1. 2026-09-09 18:51 UTCEG score recompute
  2. 2026-09-09 18:51 UTCGHSA enrichment
  3. 2026-09-08 22:01 UTCEPSS rescore
  4. 2026-09-08 20:14 UTCGHSA enrichment
  5. 2026-09-08 16:17 UTCEG score recompute
  6. 2026-09-08 16:17 UTCGHSA enrichment
  7. 2026-09-07 15:08 UTCGHSA enrichment
  8. 2026-09-06 16:31 UTCEG score recompute
  9. 2026-09-06 16:31 UTCGHSA enrichment
  10. 2026-09-06 13:48 UTCEPSS rescore
  11. 2026-09-05 17:55 UTCEG score recompute
  12. 2026-09-05 17:55 UTCGHSA enrichment
  13. 2026-09-05 15:31 UTCEPSS rescore
  14. 2026-09-04 19:18 UTCEG score recompute
  15. 2026-09-04 18:39 UTCEG score recompute
  16. 2026-09-04 18:39 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-80115?
CVE-2026-80115 is a medium vulnerability published on September 4, 2026. PassMark PerformanceTest before 11.1 build 1012, BurnInTest before 11.1 build 1000, and OSForensics before 11.1 build 1016 contain a privilege escalation and denial-of-service vulnerability in DirectIo64.sys that allows local attackers to read arbitrary Model-Specific Registers or write zero to any…
When was CVE-2026-80115 disclosed?
CVE-2026-80115 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80115 actively exploited?
CVE-2026-80115 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-2026-80115?
CVE-2026-80115 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-80115?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80115, 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-2026-80115

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