CVE-2026-37231

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: 0%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 uses a uint16_t counter for xapp_id assignment but stores the value in uint32_t message fields. After 65,530+ E42_SETUP_REQUESTs, the 16-bit counter wraps around and produces duplicate xapp_ids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data structure. A remote attacker can trigger this by repeatedly connecting and requesting new xApp registrations.

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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
39.1%
KEV
Not listed

Published

June 1, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jun 7, 2026
No patch confirmed yet.
generic

mosaic5g / Flexric · GitLab

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

oran-security-advisories-zhongnan-luo/advisories/CVE-2026-37231.md at main · MinamiKotor1/oran-security-advisories-zhongnan-luo · GitHub

https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37231.md

Vendor Advisories for CVE-2026-37231(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 121 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 18:36 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 02:47 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 15:41 UTCGHSA enrichment
  10. 2026-07-02 01:52 UTCGHSA enrichment
  11. 2026-07-01 15:06 UTCEPSS rescore
  12. 2026-07-01 12:26 UTCGHSA enrichment
  13. 2026-06-30 23:22 UTCEPSS rescore
  14. 2026-06-30 23:19 UTCGHSA enrichment
  15. 2026-06-30 00:42 UTCGHSA enrichment
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 11:35 UTCGHSA enrichment
  18. 2026-06-28 20:04 UTCGHSA enrichment
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 06:55 UTCGHSA enrichment
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-27 17:48 UTCGHSA enrichment
  23. 2026-06-27 04:40 UTCGHSA enrichment
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-26 15:33 UTCGHSA enrichment
  26. 2026-06-25 17:15 UTCGHSA enrichment
  27. 2026-06-25 13:49 UTCEPSS rescore
  28. 2026-06-25 13:49 UTCEPSS rescore
  29. 2026-06-25 04:07 UTCGHSA enrichment
  30. 2026-06-24 14:58 UTCGHSA enrichment
  31. 2026-06-24 14:05 UTCEPSS rescore
  32. 2026-06-24 01:49 UTCGHSA enrichment
  33. 2026-06-23 21:33 UTCEPSS rescore
  34. 2026-06-23 21:33 UTCEPSS rescore
  35. 2026-06-22 14:25 UTCEPSS rescore
  36. 2026-06-22 14:25 UTCEPSS rescore
  37. 2026-06-21 14:56 UTCEPSS rescore
  38. 2026-06-21 14:56 UTCEPSS rescore
  39. 2026-06-21 01:59 UTCEPSS rescore
  40. 2026-06-20 13:56 UTCGHSA enrichment
  41. 2026-06-19 19:25 UTCEPSS rescore
  42. 2026-06-19 19:25 UTCEPSS rescore
  43. 2026-06-18 21:51 UTCGHSA enrichment
  44. 2026-06-18 17:52 UTCEPSS rescore
  45. 2026-06-18 17:52 UTCEPSS rescore
  46. 2026-06-18 01:38 UTCGHSA enrichment
  47. 2026-06-17 17:53 UTCEPSS rescore
  48. 2026-06-17 12:28 UTCGHSA enrichment
  49. 2026-06-16 23:21 UTCGHSA enrichment
  50. 2026-06-16 17:52 UTCEPSS rescore
  51. 2026-06-16 10:13 UTCGHSA enrichment
  52. 2026-06-15 21:06 UTCGHSA enrichment
  53. 2026-06-15 17:49 UTCEPSS rescore
  54. 2026-06-15 07:53 UTCGHSA enrichment
  55. 2026-06-14 23:18 UTCEPSS rescore
  56. 2026-06-14 18:45 UTCGHSA enrichment
  57. 2026-06-14 05:37 UTCGHSA enrichment
  58. 2026-06-13 23:00 UTCEPSS rescore
  59. 2026-06-13 16:27 UTCGHSA enrichment
  60. 2026-06-13 03:19 UTCGHSA enrichment
  61. 2026-06-12 23:12 UTCEPSS rescore
  62. 2026-06-12 23:12 UTCEPSS rescore
  63. 2026-06-12 14:10 UTCGHSA enrichment
  64. 2026-06-12 01:03 UTCGHSA enrichment
  65. 2026-06-11 14:00 UTCEPSS rescore
  66. 2026-06-11 11:55 UTCGHSA enrichment
  67. 2026-06-10 22:47 UTCGHSA enrichment
  68. 2026-06-10 22:18 UTCEPSS rescore
  69. 2026-06-10 13:22 UTCEPSS rescore
  70. 2026-06-10 09:40 UTCGHSA enrichment
  71. 2026-06-09 20:32 UTCGHSA enrichment
  72. 2026-06-09 07:23 UTCGHSA enrichment
  73. 2026-06-08 18:15 UTCGHSA enrichment
  74. 2026-06-08 14:17 UTCEPSS rescore
  75. 2026-06-08 14:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37231?
CVE-2026-37231 is a high vulnerability published on June 1, 2026. FlexRIC v2.0.0 uses a uint16t counter for xappid assignment but stores the value in uint32t message fields. After 65,530+ E42SETUPREQUESTs, the 16-bit counter wraps around and produces duplicate xappids. The iApp (port 36422) crashes when attempting to register a duplicate ID in its internal data…
When was CVE-2026-37231 disclosed?
CVE-2026-37231 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-2026-37231 actively exploited?
CVE-2026-37231 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-37231?
CVE-2026-37231 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37231?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37231, 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

Explore the affected products and dependency analysis for CVE-2026-37231

Explore →

Is Your Infrastructure Affected by CVE-2026-37231?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs