CVE-2026-12996

HIGHNVD 8.18.1—
EchelonGraph scoreHIGH 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(high)
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
38%
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) @ resolute2026-08-21ubuntu

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 43× in last 7d / 126× 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 126 total refreshes for this CVE.

  1. 2026-08-21 05:38 UTCEG score recompute
  2. 2026-08-21 05:38 UTCVendor advisory
  3. 2026-08-21 05:38 UTCGHSA enrichment
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-20 18:15 UTCVendor advisory
  6. 2026-08-20 18:15 UTCGHSA enrichment
  7. 2026-08-20 06:52 UTCVendor advisory
  8. 2026-08-20 06:52 UTCGHSA enrichment
  9. 2026-08-19 19:29 UTCEG score recompute
  10. 2026-08-19 19:29 UTCVendor advisory
  11. 2026-08-19 19:29 UTCGHSA enrichment
  12. 2026-08-19 17:03 UTCEPSS rescore
  13. 2026-08-19 05:49 UTCVendor advisory
  14. 2026-08-19 05:49 UTCGHSA enrichment
  15. 2026-08-18 18:27 UTCEG score recompute
  16. 2026-08-18 18:27 UTCVendor advisory
  17. 2026-08-18 18:27 UTCGHSA enrichment
  18. 2026-08-18 13:48 UTCEPSS rescore
  19. 2026-08-18 04:36 UTCGHSA enrichment
  20. 2026-08-17 17:11 UTCEG score recompute
  21. 2026-08-17 17:11 UTCVendor advisory
  22. 2026-08-17 17:11 UTCGHSA enrichment
  23. 2026-08-17 05:46 UTCVendor advisory
  24. 2026-08-17 05:46 UTCGHSA enrichment
  25. 2026-08-16 17:43 UTCEG score recompute
Show 75 more
  1. 2026-08-16 17:43 UTCVendor advisory
  2. 2026-08-16 17:43 UTCGHSA enrichment
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 06:19 UTCEG score recompute
  5. 2026-08-16 06:19 UTCVendor advisory
  6. 2026-08-16 06:19 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 18:57 UTCVendor advisory
  9. 2026-08-15 18:57 UTCGHSA enrichment
  10. 2026-08-15 07:34 UTCEG score recompute
  11. 2026-08-15 07:34 UTCVendor advisory
  12. 2026-08-15 07:34 UTCGHSA enrichment
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 20:10 UTCVendor advisory
  15. 2026-08-14 20:10 UTCGHSA enrichment
  16. 2026-08-14 08:47 UTCEG score recompute
  17. 2026-08-14 08:47 UTCVendor advisory
  18. 2026-08-14 08:47 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 21:24 UTCVendor advisory
  21. 2026-08-13 21:24 UTCGHSA enrichment
  22. 2026-08-13 09:58 UTCVendor advisory
  23. 2026-08-13 09:58 UTCGHSA enrichment
  24. 2026-08-12 22:36 UTCEG score recompute
  25. 2026-08-12 22:36 UTCVendor advisory
  26. 2026-08-12 22:36 UTCGHSA enrichment
  27. 2026-08-12 13:50 UTCEPSS rescore
  28. 2026-08-12 11:13 UTCVendor advisory
  29. 2026-08-12 11:13 UTCGHSA enrichment
  30. 2026-08-11 23:50 UTCEG score recompute
  31. 2026-08-11 23:50 UTCVendor advisory
  32. 2026-08-11 23:50 UTCGHSA enrichment
  33. 2026-08-11 13:42 UTCEPSS rescore
  34. 2026-08-11 12:27 UTCVendor advisory
  35. 2026-08-11 12:27 UTCGHSA enrichment
  36. 2026-08-11 01:04 UTCEG score recompute
  37. 2026-08-11 01:04 UTCVendor advisory
  38. 2026-08-11 01:04 UTCGHSA enrichment
  39. 2026-08-10 23:59 UTCEPSS rescore
  40. 2026-08-10 13:41 UTCVendor advisory
  41. 2026-08-10 13:41 UTCGHSA enrichment
  42. 2026-08-10 02:17 UTCVendor advisory
  43. 2026-08-10 02:17 UTCGHSA enrichment
  44. 2026-08-09 14:54 UTCEG score recompute
  45. 2026-08-09 14:54 UTCVendor advisory
  46. 2026-08-09 14:54 UTCGHSA enrichment
  47. 2026-08-09 13:46 UTCEPSS rescore
  48. 2026-08-09 03:32 UTCEG score recompute
  49. 2026-08-09 03:32 UTCVendor advisory
  50. 2026-08-09 03:32 UTCGHSA enrichment
  51. 2026-08-08 16:37 UTCEPSS rescore
  52. 2026-08-08 16:09 UTCVendor advisory
  53. 2026-08-08 16:09 UTCGHSA enrichment
  54. 2026-08-08 04:46 UTCVendor advisory
  55. 2026-08-08 04:46 UTCGHSA enrichment
  56. 2026-08-07 17:23 UTCEG score recompute
  57. 2026-08-07 17:23 UTCVendor advisory
  58. 2026-08-07 17:23 UTCGHSA enrichment
  59. 2026-08-07 06:00 UTCVendor advisory
  60. 2026-08-07 06:00 UTCGHSA enrichment
  61. 2026-08-06 18:37 UTCEG score recompute
  62. 2026-08-06 18:37 UTCVendor advisory
  63. 2026-08-06 18:37 UTCGHSA enrichment
  64. 2026-08-06 13:46 UTCEPSS rescore
  65. 2026-08-06 07:14 UTCEG score recompute
  66. 2026-08-06 07:14 UTCVendor advisory
  67. 2026-08-06 07:14 UTCGHSA enrichment
  68. 2026-08-05 19:51 UTCEG score recompute▲ 2.10
  69. 2026-08-05 19:51 UTCVendor advisory
  70. 2026-08-05 19:51 UTCGHSA enrichment
  71. 2026-08-05 19:51 UTCNVD updateCVSS v3 → 8.1 · severity → HIGH
  72. 2026-08-05 19:17 UTCEPSS rescore
  73. 2026-08-05 18:43 UTCVendor advisory
  74. 2026-08-05 18:43 UTCGHSA enrichment
  75. 2026-08-04 18:53 UTCEG score recompute

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 61.6% 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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