CVE-2026-78158

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-24. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

A flaw has been found in Open5GS 2.8.0. This vulnerability affects unknown code of the component AMF UEContextReleaseRequest Path Handler. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 24, 2026
🔬 Proof of concept available. Patch available. Sources: github.
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-19) · GitHub

https://github.com/open5gs/open5gs/
github Patch Available🟡 PoC Available

Open5GS AMF UEContextReleaseRequest path allows cross-association release of a UE context owned by another gNB association · Advisory · open5gs/open5gs · GitHub

https://github.com/open5gs/open5gs/security/advisories/GHSA-mg8r-2cvv-xq9j

Vendor Advisories for CVE-2026-78158(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 81× 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. 2026-09-19 20:37 UTCEG score recompute
  2. 2026-09-19 20:37 UTCGHSA enrichment
  3. 2026-09-18 21:35 UTCEG score recompute
  4. 2026-09-18 21:35 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-17 21:13 UTCEG score recompute
  7. 2026-09-17 21:13 UTCGHSA enrichment
  8. 2026-09-16 19:39 UTCEG score recompute
  9. 2026-09-16 19:39 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 19:46 UTCEG score recompute
  13. 2026-09-15 19:46 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 20:30 UTCGHSA enrichment
  17. 2026-09-13 21:28 UTCEG score recompute
  18. 2026-09-13 21:28 UTCGHSA enrichment
  19. 2026-09-12 22:26 UTCEG score recompute
  20. 2026-09-12 22:26 UTCGHSA enrichment
  21. 2026-09-11 23:24 UTCEG score recompute
  22. 2026-09-11 23:24 UTCGHSA enrichment
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 00:15 UTCEG score recompute
Show 56 more
  1. 2026-09-11 00:15 UTCGHSA enrichment
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-10 00:38 UTCGHSA enrichment
  4. 2026-09-09 01:36 UTCEG score recompute
  5. 2026-09-09 01:35 UTCGHSA enrichment
  6. 2026-09-08 22:01 UTCEPSS rescore
  7. 2026-09-07 11:26 UTCEG score recompute
  8. 2026-09-07 11:26 UTCGHSA enrichment
  9. 2026-09-06 13:48 UTCEPSS rescore
  10. 2026-09-06 12:23 UTCEG score recompute
  11. 2026-09-06 12:23 UTCGHSA enrichment
  12. 2026-09-05 13:20 UTCGHSA enrichment
  13. 2026-09-04 14:19 UTCEG score recompute
  14. 2026-09-04 14:18 UTCGHSA enrichment
  15. 2026-09-04 05:07 UTCEPSS rescore
  16. 2026-09-03 15:16 UTCGHSA enrichment
  17. 2026-09-02 16:11 UTCEG score recompute
  18. 2026-09-02 16:11 UTCGHSA enrichment
  19. 2026-09-02 14:12 UTCEPSS rescore
  20. 2026-09-01 17:09 UTCEG score recompute
  21. 2026-09-01 17:08 UTCGHSA enrichment
  22. 2026-09-01 13:54 UTCEPSS rescore
  23. 2026-09-01 04:40 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-08-31 17:51 UTCEG score recompute
  26. 2026-08-31 17:51 UTCGHSA enrichment
  27. 2026-08-30 19:18 UTCEPSS rescore
  28. 2026-08-30 19:17 UTCEPSS rescore
  29. 2026-08-30 16:38 UTCEG score recompute
  30. 2026-08-30 16:38 UTCGHSA enrichment
  31. 2026-08-30 01:22 UTCEPSS rescore
  32. 2026-08-29 17:36 UTCEG score recompute
  33. 2026-08-29 17:36 UTCGHSA enrichment
  34. 2026-08-28 21:42 UTCEPSS rescore
  35. 2026-08-28 17:33 UTCGHSA enrichment
  36. 2026-08-27 17:37 UTCEG score recompute
  37. 2026-08-27 17:37 UTCGHSA enrichment
  38. 2026-08-27 17:23 UTCNVD updateCVSS v4 → 2.1
  39. 2026-08-27 17:17 UTCEG score recompute
  40. 2026-08-27 17:17 UTCGHSA enrichment
  41. 2026-08-27 16:43 UTCMITRE cvelistV5CVSS v4 → 5.3
  42. 2026-08-27 14:25 UTCEPSS rescore
  43. 2026-08-27 13:50 UTCGHSA enrichment
  44. 2026-08-26 14:48 UTCEG score recompute
  45. 2026-08-26 14:48 UTCGHSA enrichment
  46. 2026-08-26 14:47 UTCEPSS rescore
  47. 2026-08-25 15:47 UTCEG score recompute
  48. 2026-08-25 15:47 UTCGHSA enrichment
  49. 2026-08-25 13:49 UTCEPSS rescore
  50. 2026-08-24 16:46 UTCEG score recompute
  51. 2026-08-24 16:46 UTCGHSA enrichment
  52. 2026-08-24 14:18 UTCEPSS rescore
  53. 2026-08-24 01:38 UTCEG score recompute
  54. 2026-08-24 01:37 UTCNVD updateCVSS v4 → 2.1
  55. 2026-08-24 00:16 UTCEG score recompute
  56. 2026-08-24 00:15 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78158?
CVE-2026-78158 is a medium vulnerability published on August 24, 2026. A flaw has been found in Open5GS 2.8.0. This vulnerability affects unknown code of the component AMF UEContextReleaseRequest Path Handler. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely.
When was CVE-2026-78158 disclosed?
CVE-2026-78158 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78158 actively exploited?
CVE-2026-78158 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.5% of all scored CVEs.
What is the CVSS score of CVE-2026-78158?
CVE-2026-78158 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-78158?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78158, 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-2026-78158

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