CVE-2026-37228

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

FlexRIC v2.0.0 contains a reachable assertion in e2ap_recv_sctp_msg() (src/lib/ep/e2ap_ep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc < len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload >= 32,768 bytes to crash the near-RT RIC, iApp, E2 Agent, or xApp process via SIGABRT. No valid E2AP PDU is required. All four SCTP endpoint types (ports 36421 and 36422) share this vulnerable code path. In Release builds (NDEBUG), the stripped assertion leads to a signed-to-unsigned integer overflow and potential out-of-bounds read.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
47.0%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

mosaic5g / Flexric · GitLab

https://gitlab.eurecom.fr/mosaic5g/flexric
generic

oran-security-advisories-zhongnan-luo/advisories/CVE-2026-37228.md at main · MinamiKotor1/oran-security-advisories-zhongnan-luo · GitHub

https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37228.md

Vendor Advisories for CVE-2026-37228(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 9× in last 7d / 59× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:10 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-21 15:24 UTCEPSS rescore
  6. 2026-07-20 17:08 UTCEPSS rescore
  7. 2026-07-19 14:31 UTCEPSS rescore
  8. 2026-07-19 02:29 UTCEPSS rescore
  9. 2026-07-18 10:04 UTCEPSS rescore
  10. 2026-07-16 17:03 UTCEPSS rescore
  11. 2026-07-16 01:28 UTCGHSA enrichment
  12. 2026-07-15 16:57 UTCEPSS rescore
  13. 2026-07-15 16:57 UTCEPSS rescore
  14. 2026-07-15 02:00 UTCEPSS rescore
  15. 2026-07-14 17:09 UTCGHSA enrichment
  16. 2026-07-14 05:28 UTCGHSA enrichment
  17. 2026-07-13 22:30 UTCEPSS rescore
  18. 2026-07-13 06:13 UTCEPSS rescore
  19. 2026-07-13 06:13 UTCEPSS rescore
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-12 01:09 UTCGHSA enrichment
  22. 2026-07-11 13:27 UTCGHSA enrichment
  23. 2026-07-11 08:27 UTCEPSS rescore
  24. 2026-07-09 19:10 UTCEPSS rescore
  25. 2026-07-08 16:54 UTCGHSA enrichment
Show 75 more
  1. 2026-07-08 15:15 UTCEPSS rescore
  2. 2026-07-07 13:46 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-05 02:30 UTCEPSS rescore
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-02 13:53 UTCGHSA enrichment
  10. 2026-07-02 02:02 UTCGHSA enrichment
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-07-01 11:08 UTCGHSA enrichment
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-30 23:19 UTCGHSA enrichment
  15. 2026-06-30 02:01 UTCGHSA enrichment
  16. 2026-06-29 14:21 UTCGHSA enrichment
  17. 2026-06-29 14:06 UTCEPSS rescore
  18. 2026-06-29 02:41 UTCGHSA enrichment
  19. 2026-06-28 15:01 UTCGHSA enrichment
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-28 03:18 UTCGHSA enrichment
  23. 2026-06-27 15:38 UTCGHSA enrichment
  24. 2026-06-27 03:54 UTCGHSA enrichment
  25. 2026-06-27 03:08 UTCEPSS rescore
  26. 2026-06-26 15:34 UTCGHSA enrichment
  27. 2026-06-26 01:53 UTCGHSA enrichment
  28. 2026-06-25 14:13 UTCGHSA enrichment
  29. 2026-06-25 13:49 UTCEPSS rescore
  30. 2026-06-25 13:49 UTCEPSS rescore
  31. 2026-06-25 02:33 UTCGHSA enrichment
  32. 2026-06-24 14:53 UTCGHSA enrichment
  33. 2026-06-24 14:05 UTCEPSS rescore
  34. 2026-06-24 01:49 UTCGHSA enrichment
  35. 2026-06-23 21:33 UTCEPSS rescore
  36. 2026-06-23 21:33 UTCEPSS rescore
  37. 2026-06-22 14:25 UTCEPSS rescore
  38. 2026-06-22 14:25 UTCEPSS rescore
  39. 2026-06-21 14:56 UTCEPSS rescore
  40. 2026-06-21 14:56 UTCEPSS rescore
  41. 2026-06-21 01:59 UTCEPSS rescore
  42. 2026-06-20 13:59 UTCGHSA enrichment
  43. 2026-06-19 19:25 UTCEPSS rescore
  44. 2026-06-19 19:25 UTCEPSS rescore
  45. 2026-06-18 21:52 UTCGHSA enrichment
  46. 2026-06-18 17:52 UTCEPSS rescore
  47. 2026-06-18 17:52 UTCEPSS rescore
  48. 2026-06-18 07:57 UTCGHSA enrichment
  49. 2026-06-17 20:06 UTCGHSA enrichment
  50. 2026-06-17 17:53 UTCEPSS rescore
  51. 2026-06-17 08:26 UTCGHSA enrichment
  52. 2026-06-16 20:47 UTCGHSA enrichment
  53. 2026-06-16 17:52 UTCEPSS rescore
  54. 2026-06-16 09:06 UTCGHSA enrichment
  55. 2026-06-15 21:07 UTCGHSA enrichment
  56. 2026-06-15 17:49 UTCEPSS rescore
  57. 2026-06-15 09:18 UTCGHSA enrichment
  58. 2026-06-14 23:18 UTCEPSS rescore
  59. 2026-06-14 21:08 UTCGHSA enrichment
  60. 2026-06-14 09:27 UTCGHSA enrichment
  61. 2026-06-13 23:00 UTCEPSS rescore
  62. 2026-06-13 21:48 UTCGHSA enrichment
  63. 2026-06-13 10:08 UTCGHSA enrichment
  64. 2026-06-12 23:12 UTCEPSS rescore
  65. 2026-06-12 23:12 UTCEPSS rescore
  66. 2026-06-12 22:27 UTCGHSA enrichment
  67. 2026-06-12 10:47 UTCGHSA enrichment
  68. 2026-06-11 23:07 UTCGHSA enrichment
  69. 2026-06-11 14:00 UTCEPSS rescore
  70. 2026-06-11 11:27 UTCGHSA enrichment
  71. 2026-06-10 23:46 UTCGHSA enrichment
  72. 2026-06-10 22:18 UTCEPSS rescore
  73. 2026-06-10 13:22 UTCEPSS rescore
  74. 2026-06-10 12:07 UTCGHSA enrichment
  75. 2026-06-10 00:27 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-37228?
CVE-2026-37228 is a high vulnerability published on June 1, 2026. FlexRIC v2.0.0 contains a reachable assertion in e2aprecvsctpmsg() (src/lib/ep/e2apep.c). The function allocates a fixed 32KB receive buffer and enforces assert(rc < len) on the sctp_recvmsg() return value. A remote unauthenticated attacker can send a single SCTP message with payload >= 32,768…
When was CVE-2026-37228 disclosed?
CVE-2026-37228 was first published in the National Vulnerability Database on June 1, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37228 actively exploited?
CVE-2026-37228 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 47.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-37228?
CVE-2026-37228 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37228?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37228, 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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