CVE-2026-12996

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory published 2026-07-30. NVD baseline CVSS 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 5, 2026

References (4)

Vendor Advisories for CVE-2026-12996(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenvpn (2.7.0-1ubuntu1.2) @ resolute2026-09-20ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
openvpn—2.7.5-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
openvpn2.5.1-3, 2.5.1-3+deb11u1, 2.5.1-3+deb11u2, 2.5.1-3+deb11u32.5.1-3+deb11u4—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.11-1 ... 2.6.9-1 (15 versions)2.6.14-0+deb12u2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.14-1, 2.6.14-1+deb13u1, 2.6.14-1+deb13u22.6.14-1+deb13u3—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
openvpn2.6.14-1 ... 2.7.5-1~bpo13+1 (24 versions)2.7.5-1—

Weakness Classification(2)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 30× in last 7d / 133× 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.

Showing the most recent 100 of 261 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 11:11 UTCVendor advisory
  3. 2026-09-20 11:11 UTCGHSA enrichment
  4. 2026-09-19 23:46 UTCEG score recompute
  5. 2026-09-19 23:46 UTCVendor advisory
  6. 2026-09-19 23:46 UTCGHSA enrichment
  7. 2026-09-19 04:15 UTCEG score recompute
  8. 2026-09-19 04:15 UTCVendor advisory
  9. 2026-09-19 04:15 UTCGHSA enrichment
  10. 2026-09-18 19:27 UTCEPSS rescore
  11. 2026-09-18 13:35 UTCVendor advisory
  12. 2026-09-18 13:35 UTCGHSA enrichment
  13. 2026-09-18 01:22 UTCEG score recompute
  14. 2026-09-18 01:22 UTCVendor advisory
  15. 2026-09-18 01:22 UTCGHSA enrichment
  16. 2026-09-17 01:28 UTCEG score recompute
  17. 2026-09-17 01:28 UTCVendor advisory
  18. 2026-09-17 01:28 UTCGHSA enrichment
  19. 2026-09-16 05:35 UTCEG score recompute
  20. 2026-09-16 05:35 UTCVendor advisory
  21. 2026-09-16 05:35 UTCGHSA enrichment
  22. 2026-09-16 05:14 UTCEPSS rescore
  23. 2026-09-15 03:17 UTCEG score recompute
  24. 2026-09-15 03:17 UTCVendor advisory
  25. 2026-09-15 03:17 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 11:17 UTCVendor advisory
  2. 2026-09-14 11:17 UTCGHSA enrichment
  3. 2026-09-13 23:54 UTCEG score recompute
  4. 2026-09-13 23:54 UTCVendor advisory
  5. 2026-09-13 23:54 UTCGHSA enrichment
  6. 2026-09-13 16:46 UTCEPSS rescore
  7. 2026-09-13 12:31 UTCVendor advisory
  8. 2026-09-13 12:31 UTCGHSA enrichment
  9. 2026-09-13 01:08 UTCEG score recompute
  10. 2026-09-13 01:08 UTCVendor advisory
  11. 2026-09-13 01:08 UTCGHSA enrichment
  12. 2026-09-12 15:00 UTCEPSS rescore
  13. 2026-09-12 13:45 UTCVendor advisory
  14. 2026-09-12 13:45 UTCGHSA enrichment
  15. 2026-09-12 02:22 UTCVendor advisory
  16. 2026-09-12 02:22 UTCGHSA enrichment
  17. 2026-09-11 14:59 UTCEG score recompute
  18. 2026-09-11 14:59 UTCVendor advisory
  19. 2026-09-11 14:59 UTCGHSA enrichment
  20. 2026-09-11 14:52 UTCEPSS rescore
  21. 2026-09-11 09:36 UTCEPSS rescore
  22. 2026-09-11 02:17 UTCVendor advisory
  23. 2026-09-11 02:17 UTCGHSA enrichment
  24. 2026-09-10 14:54 UTCEG score recompute
  25. 2026-09-10 14:54 UTCVendor advisory
  26. 2026-09-10 14:54 UTCGHSA enrichment
  27. 2026-09-10 09:34 UTCEPSS rescore
  28. 2026-09-10 03:31 UTCVendor advisory
  29. 2026-09-10 03:31 UTCGHSA enrichment
  30. 2026-09-09 07:13 UTCEG score recompute
  31. 2026-09-09 07:13 UTCVendor advisory
  32. 2026-09-09 07:13 UTCGHSA enrichment
  33. 2026-09-08 22:00 UTCEPSS rescore
  34. 2026-09-07 19:50 UTCEG score recompute
  35. 2026-09-07 19:50 UTCVendor advisory
  36. 2026-09-07 19:50 UTCGHSA enrichment
  37. 2026-09-07 16:01 UTCEPSS rescore
  38. 2026-09-06 18:16 UTCEG score recompute
  39. 2026-09-06 18:16 UTCVendor advisory
  40. 2026-09-06 18:16 UTCGHSA enrichment
  41. 2026-09-06 13:47 UTCEPSS rescore
  42. 2026-09-06 06:38 UTCVendor advisory
  43. 2026-09-06 06:38 UTCGHSA enrichment
  44. 2026-09-05 18:50 UTCEG score recompute
  45. 2026-09-05 18:50 UTCVendor advisory
  46. 2026-09-05 18:50 UTCGHSA enrichment
  47. 2026-09-05 04:52 UTCEG score recompute
  48. 2026-09-05 04:52 UTCVendor advisory
  49. 2026-09-05 04:52 UTCGHSA enrichment
  50. 2026-09-04 11:27 UTCEG score recompute
  51. 2026-09-04 11:27 UTCVendor advisory
  52. 2026-09-04 11:27 UTCGHSA enrichment
  53. 2026-09-04 05:06 UTCEPSS rescore
  54. 2026-09-02 14:11 UTCEPSS rescore
  55. 2026-09-01 22:37 UTCEG score recompute
  56. 2026-09-01 22:37 UTCVendor advisory
  57. 2026-09-01 22:37 UTCGHSA enrichment
  58. 2026-09-01 13:53 UTCEPSS rescore
  59. 2026-09-01 04:39 UTCEPSS rescore
  60. 2026-08-31 23:32 UTCVendor advisory
  61. 2026-08-31 23:32 UTCGHSA enrichment
  62. 2026-08-30 21:37 UTCEG score recompute
  63. 2026-08-30 21:37 UTCVendor advisory
  64. 2026-08-30 21:37 UTCGHSA enrichment
  65. 2026-08-30 19:17 UTCEPSS rescore
  66. 2026-08-30 10:12 UTCEG score recompute
  67. 2026-08-30 10:12 UTCVendor advisory
  68. 2026-08-30 10:12 UTCGHSA enrichment
  69. 2026-08-30 01:21 UTCEPSS rescore
  70. 2026-08-29 22:32 UTCEG score recompute
  71. 2026-08-29 22:32 UTCVendor advisory
  72. 2026-08-29 22:32 UTCGHSA enrichment
  73. 2026-08-28 21:40 UTCEPSS rescore
  74. 2026-08-27 21:37 UTCEG score recompute
  75. 2026-08-27 21:37 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-12996?
CVE-2026-12996 is a high vulnerability published on July 30, 2026. A use-after-free in OpenVPN 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote authenticated peers to potentially cause a denial of service or leak memory via crafted packets during TLS session promotion or expiry
When was CVE-2026-12996 disclosed?
CVE-2026-12996 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-12996 actively exploited?
CVE-2026-12996 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 60.8% of all scored CVEs.
What is the CVSS score of CVE-2026-12996?
CVE-2026-12996 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-12996?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-12996, 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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