CVE-2026-78043

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: 0.2%, top 93% 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 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via specially crafted paths

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
6%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

Vendor Advisories for CVE-2026-78043(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 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. 2026-09-24 14:04 UTCEPSS rescore
  2. 2026-09-24 12:55 UTCEG score recompute
  3. 2026-09-24 12:55 UTCGHSA enrichment
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 13:23 UTCEG score recompute
  6. 2026-09-23 13:22 UTCGHSA enrichment
  7. 2026-09-22 16:01 UTCEPSS rescore
  8. 2026-09-22 13:47 UTCEG score recompute
  9. 2026-09-22 13:47 UTCGHSA enrichment
  10. 2026-09-21 21:09 UTCEPSS rescore
  11. 2026-09-21 14:15 UTCEG score recompute
  12. 2026-09-21 14:15 UTCGHSA enrichment
  13. 2026-09-20 20:16 UTCEPSS rescore
  14. 2026-09-20 14:42 UTCEG score recompute
  15. 2026-09-20 14:42 UTCGHSA enrichment
  16. 2026-09-19 15:09 UTCEG score recompute
  17. 2026-09-19 15:09 UTCGHSA enrichment
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-18 15:29 UTCEG score recompute
  20. 2026-09-18 15:29 UTCGHSA enrichment
  21. 2026-09-17 15:50 UTCGHSA enrichment
  22. 2026-09-16 16:18 UTCEG score recompute
  23. 2026-09-16 16:17 UTCGHSA enrichment
  24. 2026-09-16 14:08 UTCEPSS rescore
  25. 2026-09-16 05:15 UTCEPSS rescore
Show 29 more
  1. 2026-09-15 16:42 UTCEG score recompute
  2. 2026-09-15 16:42 UTCGHSA enrichment
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-14 17:10 UTCGHSA enrichment
  6. 2026-09-13 17:38 UTCEG score recompute
  7. 2026-09-13 17:38 UTCGHSA enrichment
  8. 2026-09-12 18:06 UTCEG score recompute
  9. 2026-09-12 18:06 UTCGHSA enrichment
  10. 2026-09-11 18:32 UTCEG score recompute
  11. 2026-09-11 18:32 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-10 18:59 UTCEG score recompute
  15. 2026-09-10 18:59 UTCGHSA enrichment
  16. 2026-09-10 09:35 UTCEPSS rescore
  17. 2026-09-09 19:26 UTCEG score recompute
  18. 2026-09-09 19:26 UTCGHSA enrichment
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-08 19:53 UTCGHSA enrichment
  21. 2026-09-08 16:03 UTCEG score recompute
  22. 2026-09-08 16:02 UTCGHSA enrichment
  23. 2026-09-08 15:04 UTCEG score recompute
  24. 2026-09-08 15:04 UTCGHSA enrichment
  25. 2026-09-08 08:01 UTCEG score recompute
  26. 2026-09-08 08:01 UTCGHSA enrichment
  27. 2026-09-07 08:29 UTCEG score recompute
  28. 2026-09-07 07:39 UTCEG score recompute
  29. 2026-09-07 07:36 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78043?
CVE-2026-78043 is a medium vulnerability published on September 7, 2026. The Windows Interactive Service in OpenVPN 2.7_alpha1 through 2.7.6 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via specially crafted paths
When was CVE-2026-78043 disclosed?
CVE-2026-78043 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-2026-78043 actively exploited?
CVE-2026-78043 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 94.3% of all scored CVEs.
What is the CVSS score of CVE-2026-78043?
CVE-2026-78043 has a CVSS v3 base score of 5.6 (NVD).
How do I remediate CVE-2026-78043?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78043, 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-2026-78043

Explore →

Is Your Infrastructure Affected by CVE-2026-78043?

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