CVE-2026-63649

MEDIUMPre-NVD 4.14.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 85% 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
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.1Exploit: 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 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks

CVSS v3
4.1
EG Score
4.1(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity41% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

August 14, 2026

Last Modified

September 1, 2026

References (3)

Vendor Advisories for CVE-2026-63649(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 / 74× 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 03:31 UTCEG score recompute
  2. 2026-09-19 03:31 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 01:50 UTCEG score recompute
  5. 2026-09-18 01:50 UTCGHSA enrichment
  6. 2026-09-17 00:08 UTCEG score recompute
  7. 2026-09-17 00:08 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 22:26 UTCEG score recompute
  11. 2026-09-15 22:26 UTCGHSA enrichment
  12. 2026-09-14 20:40 UTCGHSA enrichment
  13. 2026-09-13 17:29 UTCEG score recompute
  14. 2026-09-13 17:29 UTCGHSA enrichment
  15. 2026-09-12 15:47 UTCEG score recompute
  16. 2026-09-12 15:47 UTCGHSA enrichment
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-11 14:05 UTCEG score recompute
  19. 2026-09-11 14:05 UTCGHSA enrichment
  20. 2026-09-11 09:37 UTCEPSS rescore
  21. 2026-09-10 12:23 UTCEG score recompute
  22. 2026-09-10 12:23 UTCGHSA enrichment
  23. 2026-09-09 09:39 UTCEG score recompute
  24. 2026-09-09 09:39 UTCGHSA enrichment
  25. 2026-09-08 22:01 UTCEPSS rescore
Show 65 more
  1. 2026-09-08 07:57 UTCEG score recompute
  2. 2026-09-08 07:57 UTCGHSA enrichment
  3. 2026-09-07 16:01 UTCEPSS rescore
  4. 2026-09-07 06:15 UTCEG score recompute
  5. 2026-09-07 06:15 UTCGHSA enrichment
  6. 2026-09-06 13:47 UTCEPSS rescore
  7. 2026-09-06 04:28 UTCEG score recompute
  8. 2026-09-06 04:28 UTCGHSA enrichment
  9. 2026-09-05 15:31 UTCEPSS rescore
  10. 2026-09-05 02:46 UTCEG score recompute
  11. 2026-09-05 02:46 UTCGHSA enrichment
  12. 2026-09-04 05:07 UTCEPSS rescore
  13. 2026-09-04 00:59 UTCGHSA enrichment
  14. 2026-09-02 22:56 UTCEG score recompute
  15. 2026-09-02 22:56 UTCGHSA enrichment
  16. 2026-09-02 14:12 UTCEPSS rescore
  17. 2026-09-01 21:10 UTCEG score recompute
  18. 2026-09-01 21:10 UTCGHSA enrichment
  19. 2026-09-01 13:54 UTCEPSS rescore
  20. 2026-09-01 04:40 UTCEPSS rescore
  21. 2026-08-31 21:27 UTCEG score recompute
  22. 2026-08-31 21:27 UTCGHSA enrichment
  23. 2026-08-30 19:17 UTCEPSS rescore
  24. 2026-08-30 16:44 UTCEG score recompute
  25. 2026-08-30 16:44 UTCGHSA enrichment
  26. 2026-08-30 01:22 UTCEPSS rescore
  27. 2026-08-29 15:02 UTCEG score recompute
  28. 2026-08-29 15:02 UTCGHSA enrichment
  29. 2026-08-28 21:42 UTCEPSS rescore
  30. 2026-08-28 09:56 UTCEG score recompute
  31. 2026-08-28 09:56 UTCGHSA enrichment
  32. 2026-08-27 14:25 UTCEPSS rescore
  33. 2026-08-27 07:41 UTCEG score recompute
  34. 2026-08-27 07:41 UTCGHSA enrichment
  35. 2026-08-26 14:46 UTCEPSS rescore
  36. 2026-08-26 05:57 UTCEG score recompute
  37. 2026-08-26 05:57 UTCGHSA enrichment
  38. 2026-08-25 13:49 UTCEPSS rescore
  39. 2026-08-25 04:15 UTCEG score recompute
  40. 2026-08-25 04:15 UTCGHSA enrichment
  41. 2026-08-24 02:33 UTCGHSA enrichment
  42. 2026-08-23 00:50 UTCEG score recompute
  43. 2026-08-23 00:50 UTCGHSA enrichment
  44. 2026-08-23 00:19 UTCEPSS rescore
  45. 2026-08-21 23:49 UTCEPSS rescore
  46. 2026-08-21 23:08 UTCEG score recompute
  47. 2026-08-21 23:08 UTCGHSA enrichment
  48. 2026-08-20 22:55 UTCEPSS rescore
  49. 2026-08-20 21:26 UTCGHSA enrichment
  50. 2026-08-19 19:45 UTCEG score recompute
  51. 2026-08-19 19:45 UTCGHSA enrichment
  52. 2026-08-19 17:04 UTCEPSS rescore
  53. 2026-08-18 18:03 UTCEG score recompute
  54. 2026-08-18 18:03 UTCGHSA enrichment
  55. 2026-08-18 13:48 UTCEPSS rescore
  56. 2026-08-17 16:17 UTCEG score recompute
  57. 2026-08-17 16:17 UTCGHSA enrichment
  58. 2026-08-17 13:47 UTCEPSS rescore
  59. 2026-08-17 02:43 UTCEG score recompute
  60. 2026-08-17 02:43 UTCGHSA enrichment
  61. 2026-08-16 14:56 UTCEPSS rescore
  62. 2026-08-16 01:01 UTCGHSA enrichment
  63. 2026-08-14 23:19 UTCEG score recompute
  64. 2026-08-14 22:24 UTCEG score recompute
  65. 2026-08-14 22:23 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-63649?
CVE-2026-63649 is a medium vulnerability published on August 14, 2026. The Windows interactive service in OpenVPN 2.4.0 through 2.6.21 and 2.7_alpha1 through 2.7.5 allows local authenticated users to bypass the trusted configuration directory constraint and load arbitrary configuration files via crafted options that bypass whitelist checks
When was CVE-2026-63649 disclosed?
CVE-2026-63649 was first published in the National Vulnerability Database on August 14, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63649 actively exploited?
CVE-2026-63649 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 85.1% of all scored CVEs.
What is the CVSS score of CVE-2026-63649?
CVE-2026-63649 has a CVSS v3 base score of 4.1 (NVD).
How do I remediate CVE-2026-63649?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63649, 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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