CVE-2026-30079

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-07. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a registration accept! This leads the UE to be registered without proper authentication.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

April 7, 2026

Last Modified

April 14, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
No patch confirmed yet.
generic

AMF V2.2.0 Incorrect State Transition - Authentication bypass (#77) · Issues · oai / cn5g / oai-cn5g-amf · GitLab

https://gitlab.eurecom.fr/oai/cn5g/oai-cn5g-amf/-/issues/77

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 28× 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 242 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-30079?
CVE-2026-30079 is a critical vulnerability published on April 7, 2026. In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a…
When was CVE-2026-30079 disclosed?
CVE-2026-30079 was first published in the National Vulnerability Database on April 7, 2026, with the most recent update on April 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-30079 actively exploited?
CVE-2026-30079 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.5% of all scored CVEs.
What is the CVSS score of CVE-2026-30079?
CVE-2026-30079 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-30079?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-30079, 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.

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