CVE-2026-8744

MEDIUMNVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-05-17. 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 ogs_sbi_subscription_data_add/ogs_sbi_nf_service_add in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. This patch is called 819db11a08b9736a3576c4f99ceb28f7eb99523a. A patch should be applied to remediate this issue.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
36.5%
KEV
Not listed

Published

May 17, 2026

Last Modified

May 18, 2026

Advisory Details (5)

Auto-updated Jun 18, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit, github_pr.
github_pr

[SBI] Replace nf_service_pool assert with graceful cap-and-break

Upstream fix in progress (PR #4534 · open5gs/open5gs, state=open)

https://github.com/open5gs/open5gs/pull/4534
generic

[Bug]: NRF crash in `ogs_sbi_nf_service_add()` by exhausting the NF service pool · Issue #4466 · open5gs/open5gs · GitHub

https://github.com/open5gs/open5gs/issues/4466
generic

[Bug]: NRF crash on `POST /nnrf-nfm/v1/subscriptions` by exhausting the subscription pool · Issue #4465 · open5gs/open5gs · GitHub

https://github.com/open5gs/open5gs/issues/4465
github_commit

commit 819db11a08b9 (open5gs/open5gs)

Fix landed in open5gs/open5gs commit 819db11a08b9 — awaiting tagged release

https://github.com/open5gs/open5gs/commit/819db11a08b9736a3576c4f99ceb28f7eb99523a
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/

Vendor Advisories for CVE-2026-8744(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 / 55× 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. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:16 UTCEPSS rescore
  5. 2026-07-07 13:46 UTCEPSS rescore
  6. 2026-07-06 16:27 UTCEPSS rescore
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
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  10. 2026-07-05 02:31 UTCEPSS rescore
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
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  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-06-30 23:22 UTCEPSS rescore
  16. 2026-06-29 21:14 UTCEG score recompute
  17. 2026-06-29 21:14 UTCGHSA enrichment
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 04:56 UTCEPSS rescore
  21. 2026-06-27 21:37 UTCEG score recompute
  22. 2026-06-27 21:37 UTCGHSA enrichment
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-26 20:02 UTCEG score recompute
  25. 2026-06-26 20:01 UTCGHSA enrichment
Show 75 more
  1. 2026-06-25 18:32 UTCEG score recompute
  2. 2026-06-25 18:32 UTCGHSA enrichment
  3. 2026-06-25 13:50 UTCEPSS rescore
  4. 2026-06-24 14:05 UTCEPSS rescore
  5. 2026-06-23 21:33 UTCEPSS rescore
  6. 2026-06-22 14:25 UTCEPSS rescore
  7. 2026-06-21 14:56 UTCEPSS rescore
  8. 2026-06-21 01:59 UTCEPSS rescore
  9. 2026-06-19 19:26 UTCEPSS rescore
  10. 2026-06-18 17:52 UTCEPSS rescore
  11. 2026-06-18 02:38 UTCEG score recompute
  12. 2026-06-18 02:38 UTCGHSA enrichment
  13. 2026-06-17 17:53 UTCEPSS rescore
  14. 2026-06-16 23:58 UTCEG score recompute
  15. 2026-06-16 23:58 UTCGHSA enrichment
  16. 2026-06-16 17:53 UTCEPSS rescore
  17. 2026-06-15 23:20 UTCEG score recompute
  18. 2026-06-15 23:20 UTCGHSA enrichment
  19. 2026-06-15 17:49 UTCEPSS rescore
  20. 2026-06-15 17:49 UTCEPSS rescore
  21. 2026-06-14 23:18 UTCEPSS rescore
  22. 2026-06-14 15:42 UTCEG score recompute
  23. 2026-06-14 15:42 UTCGHSA enrichment
  24. 2026-06-13 23:00 UTCEPSS rescore
  25. 2026-06-13 15:02 UTCEG score recompute
  26. 2026-06-13 15:02 UTCGHSA enrichment
  27. 2026-06-12 23:12 UTCEPSS rescore
  28. 2026-06-12 23:12 UTCEPSS rescore
  29. 2026-06-12 12:31 UTCEG score recompute
  30. 2026-06-12 12:31 UTCGHSA enrichment
  31. 2026-06-11 14:00 UTCEPSS rescore
  32. 2026-06-11 11:53 UTCEG score recompute
  33. 2026-06-11 11:52 UTCGHSA enrichment
  34. 2026-06-10 22:19 UTCEPSS rescore
  35. 2026-06-10 13:22 UTCEPSS rescore
  36. 2026-06-10 11:13 UTCEG score recompute
  37. 2026-06-10 11:13 UTCGHSA enrichment
  38. 2026-06-09 10:34 UTCEG score recompute
  39. 2026-06-09 10:34 UTCGHSA enrichment
  40. 2026-06-08 14:17 UTCEPSS rescore
  41. 2026-06-08 09:55 UTCEG score recompute
  42. 2026-06-08 09:55 UTCGHSA enrichment
  43. 2026-06-07 15:25 UTCEPSS rescore
  44. 2026-06-07 09:16 UTCEG score recompute
  45. 2026-06-07 09:16 UTCGHSA enrichment
  46. 2026-06-06 13:47 UTCEPSS rescore
  47. 2026-06-06 08:37 UTCEG score recompute
  48. 2026-06-06 08:37 UTCGHSA enrichment
  49. 2026-06-05 22:47 UTCEPSS rescore
  50. 2026-06-05 07:58 UTCEG score recompute
  51. 2026-06-05 07:58 UTCGHSA enrichment
  52. 2026-06-05 06:10 UTCEPSS rescore
  53. 2026-06-04 13:12 UTCEPSS rescore
  54. 2026-06-04 07:19 UTCEG score recompute
  55. 2026-06-04 07:19 UTCGHSA enrichment
  56. 2026-06-03 06:40 UTCEG score recompute
  57. 2026-06-03 06:40 UTCGHSA enrichment
  58. 2026-06-02 20:13 UTCEPSS rescore
  59. 2026-06-02 06:01 UTCEG score recompute
  60. 2026-06-02 06:01 UTCGHSA enrichment
  61. 2026-06-01 13:52 UTCEPSS rescore
  62. 2026-06-01 05:22 UTCEG score recompute
  63. 2026-06-01 05:22 UTCGHSA enrichment
  64. 2026-05-31 22:30 UTCEPSS rescore
  65. 2026-05-31 00:16 UTCEPSS rescore
  66. 2026-05-29 13:44 UTCEPSS rescore
  67. 2026-05-28 13:44 UTCEPSS rescore
  68. 2026-05-27 13:40 UTCEPSS rescore
  69. 2026-05-26 13:44 UTCEPSS rescore
  70. 2026-05-26 07:18 UTCEPSS rescore
  71. 2026-05-21 22:43 UTCEPSS rescore
  72. 2026-05-20 22:38 UTCEPSS rescore
  73. 2026-05-20 11:53 UTCEG score recompute
  74. 2026-05-20 11:53 UTCGHSA enrichment
  75. 2026-05-20 11:22 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8744?
CVE-2026-8744 is a medium vulnerability published on May 17, 2026. A vulnerability was determined in Open5GS up to 2.7.7. Affected is the function ogssbisubscriptiondataadd/ogssbinfserviceadd in the library /lib/sbi/context.c of the component NRF. Executing a manipulation can lead to denial of service. It is possible to launch the attack remotely. The exploit has…
When was CVE-2026-8744 disclosed?
CVE-2026-8744 was first published in the National Vulnerability Database on May 17, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8744 actively exploited?
CVE-2026-8744 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8744?
CVE-2026-8744 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-8744?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8744, 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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