CVE-2026-67978

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-04. 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
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

An issue in the SBN UDP interface of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via transmitting a crafted SBN frame.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 3, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

[SECURITY] SBN UDP Information Disclosure via Truncated Frame Expansion in cFS · Issue #1058 · nasa/cFS · GitHub

https://github.com/nasa/cFS/issues/1058

Vendor Advisories for CVE-2026-67978(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 26× in last 7d / 72× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 21:22 UTCGHSA enrichment
  3. 2026-08-20 09:43 UTCGHSA enrichment
  4. 2026-08-19 22:05 UTCEG score recompute
  5. 2026-08-19 22:04 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 10:26 UTCGHSA enrichment
  8. 2026-08-18 22:48 UTCEG score recompute
  9. 2026-08-18 22:48 UTCGHSA enrichment
  10. 2026-08-18 13:48 UTCEPSS rescore
  11. 2026-08-18 11:05 UTCGHSA enrichment
  12. 2026-08-17 23:24 UTCEG score recompute
  13. 2026-08-17 23:24 UTCGHSA enrichment
  14. 2026-08-17 13:47 UTCEPSS rescore
  15. 2026-08-17 11:45 UTCGHSA enrichment
  16. 2026-08-17 00:00 UTCEG score recompute
  17. 2026-08-17 00:00 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 12:21 UTCEG score recompute
  20. 2026-08-16 12:21 UTCGHSA enrichment
  21. 2026-08-16 00:43 UTCGHSA enrichment
  22. 2026-08-15 13:04 UTCEG score recompute
  23. 2026-08-15 13:04 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-15 01:25 UTCGHSA enrichment
Show 47 more
  1. 2026-08-14 13:46 UTCGHSA enrichment
  2. 2026-08-14 02:08 UTCEG score recompute
  3. 2026-08-14 02:08 UTCGHSA enrichment
  4. 2026-08-13 22:00 UTCEPSS rescore
  5. 2026-08-13 14:29 UTCGHSA enrichment
  6. 2026-08-13 02:51 UTCGHSA enrichment
  7. 2026-08-12 15:12 UTCEG score recompute
  8. 2026-08-12 15:12 UTCGHSA enrichment
  9. 2026-08-12 13:51 UTCEPSS rescore
  10. 2026-08-12 03:33 UTCGHSA enrichment
  11. 2026-08-11 15:54 UTCEG score recompute
  12. 2026-08-11 15:54 UTCGHSA enrichment
  13. 2026-08-11 04:15 UTCEG score recompute
  14. 2026-08-11 04:15 UTCGHSA enrichment
  15. 2026-08-11 00:00 UTCEPSS rescore
  16. 2026-08-10 16:37 UTCGHSA enrichment
  17. 2026-08-10 04:40 UTCGHSA enrichment
  18. 2026-08-09 17:02 UTCEG score recompute
  19. 2026-08-09 17:02 UTCGHSA enrichment
  20. 2026-08-09 13:47 UTCEPSS rescore
  21. 2026-08-09 05:23 UTCGHSA enrichment
  22. 2026-08-08 17:45 UTCEG score recompute
  23. 2026-08-08 17:45 UTCGHSA enrichment
  24. 2026-08-08 16:37 UTCEPSS rescore
  25. 2026-08-08 06:06 UTCGHSA enrichment
  26. 2026-08-07 18:28 UTCEG score recompute
  27. 2026-08-07 18:28 UTCGHSA enrichment
  28. 2026-08-07 06:48 UTCGHSA enrichment
  29. 2026-08-06 19:09 UTCEG score recompute
  30. 2026-08-06 19:09 UTCGHSA enrichment
  31. 2026-08-06 13:47 UTCEPSS rescore
  32. 2026-08-06 07:31 UTCGHSA enrichment
  33. 2026-08-05 19:52 UTCEG score recompute
  34. 2026-08-05 19:52 UTCGHSA enrichment
  35. 2026-08-05 19:17 UTCEPSS rescore
  36. 2026-08-05 19:17 UTCEPSS rescore
  37. 2026-08-05 08:13 UTCEG score recompute
  38. 2026-08-05 08:13 UTCGHSA enrichment
  39. 2026-08-04 20:34 UTCEG score recompute
  40. 2026-08-04 20:34 UTCGHSA enrichment
  41. 2026-08-04 20:07 UTCEG score recompute▲ 7.50
  42. 2026-08-04 20:06 UTCGHSA enrichment
  43. 2026-08-04 20:06 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  44. 2026-08-04 15:10 UTCEPSS rescore
  45. 2026-08-03 23:22 UTCNVD update
  46. 2026-08-03 22:28 UTCEG score recompute
  47. 2026-08-03 22:28 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67978?
CVE-2026-67978 is a high vulnerability published on August 3, 2026. An issue in the SBN UDP interface of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via transmitting a crafted SBN frame.
When was CVE-2026-67978 disclosed?
CVE-2026-67978 was first published in the National Vulnerability Database on August 3, 2026, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67978 actively exploited?
CVE-2026-67978 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 81.7% of all scored CVEs.
What is the CVSS score of CVE-2026-67978?
CVE-2026-67978 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-67978?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67978, 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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