CVE-2026-81830

MEDIUMPre-NVD 5.65.6—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 99% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
5.6EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.6Exploit: None knownExposed: 0

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

The Windows interactive service in OpenVPN 2.4.0 through 2.6.22 allows local authenticated users to bypass the trusted configuration directory constraint via incorrect file path validation

CVSS v3
5.6
EG Score
5.6(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity56% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

References (1)

Vendor Advisories for CVE-2026-81830(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 16× in last 7d / 35× 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. 2026-09-19 06:23 UTCEG score recompute
  2. 2026-09-19 06:23 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 05:37 UTCEG score recompute
  5. 2026-09-18 05:37 UTCGHSA enrichment
  6. 2026-09-17 04:50 UTCEG score recompute
  7. 2026-09-17 04:50 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 04:03 UTCGHSA enrichment
  10. 2026-09-15 03:15 UTCEG score recompute
  11. 2026-09-15 03:15 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-14 02:28 UTCGHSA enrichment
  15. 2026-09-13 01:41 UTCEG score recompute
  16. 2026-09-13 01:41 UTCGHSA enrichment
  17. 2026-09-12 00:54 UTCEG score recompute
  18. 2026-09-12 00:54 UTCGHSA enrichment
  19. 2026-09-11 14:53 UTCEPSS rescore
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 00:07 UTCEG score recompute
  22. 2026-09-11 00:07 UTCGHSA enrichment
  23. 2026-09-09 23:19 UTCEG score recompute
  24. 2026-09-09 23:18 UTCGHSA enrichment
  25. 2026-09-08 22:01 UTCEPSS rescore
Show 10 more
  1. 2026-09-08 19:53 UTCGHSA enrichment
  2. 2026-09-08 16:02 UTCEG score recompute
  3. 2026-09-08 16:02 UTCGHSA enrichment
  4. 2026-09-08 15:08 UTCEG score recompute
  5. 2026-09-08 15:07 UTCGHSA enrichment
  6. 2026-09-08 09:57 UTCEG score recompute
  7. 2026-09-08 09:57 UTCGHSA enrichment
  8. 2026-09-07 08:29 UTCEG score recompute
  9. 2026-09-07 07:53 UTCEG score recompute
  10. 2026-09-07 07:51 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-81830?
CVE-2026-81830 is a medium vulnerability published on September 7, 2026. The Windows interactive service in OpenVPN 2.4.0 through 2.6.22 allows local authenticated users to bypass the trusted configuration directory constraint via incorrect file path validation
When was CVE-2026-81830 disclosed?
CVE-2026-81830 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-81830 actively exploited?
CVE-2026-81830 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 98.8% of all scored CVEs.
What is the CVSS score of CVE-2026-81830?
CVE-2026-81830 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2026-81830?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81830, 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-2026-81830

Explore →

Is Your Infrastructure Affected by CVE-2026-81830?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs