CVE-2026-13122

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-06. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

A fix is available — apply it.

OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 9, 2026

References (1)

Vendor Advisories for CVE-2026-13122(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) @ resolute2026-08-25ubuntu

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 ... 2.7.5-1~bpo13+1 (63 versions)——
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(1)

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 23× in last 7d / 94× 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 137 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-13122?
CVE-2026-13122 is a medium vulnerability published on July 6, 2026. OpenVPN version 2.6.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows remote attackers to cause a denial of service via a malformed authentication token that triggers a reachable assertion when external-auth is enabled
When was CVE-2026-13122 disclosed?
CVE-2026-13122 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13122 actively exploited?
CVE-2026-13122 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 78.6% of all scored CVEs.
What is the CVSS score of CVE-2026-13122?
CVE-2026-13122 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-13122?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13122, 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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