CVE-2026-8252

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-05-11. NVD baseline CVSS 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smf_nsmf_handle_create_data_in_hsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
30.0%
KEV
Not listed

Published

May 11, 2026

Last Modified

May 12, 2026

Advisory Details (2)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

[Bug]: SMF crash on `POST /nsmf-pdusession/v1/pdu-sessions` with missing `vcnTunnelInfo` · Issue #4446 · open5gs/open5gs · GitHub

https://github.com/open5gs/open5gs/issues/4446
generic

GitHub - open5gs/open5gs: Open5GS is a C-language Open Source implementation for 5G Core and EPC, i.e. the core network of LTE/NR network (Release-17) · GitHub

https://github.com/open5gs/open5gs/

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 37× 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.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8252?
CVE-2026-8252 is a medium vulnerability published on May 11, 2026. A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function smfnsmfhandlecreatedatainhsmf of the component SMF. Executing a manipulation can lead to null pointer dereference. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.…
When was CVE-2026-8252 disclosed?
CVE-2026-8252 was first published in the National Vulnerability Database on May 11, 2026, with the most recent update on May 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8252 actively exploited?
CVE-2026-8252 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8252?
CVE-2026-8252 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8252?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8252, 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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