CVE-2026-61777

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

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

NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.

CVSS v3
7.8
EG Score
7.8(high)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 2, 2026

Advisory Details (1)

Auto-updated Sep 1, 2026
No patch confirmed yet.
generic
https://www.cve.org/CVERecord?id=CVE-2026-61777

Vendor Advisories for CVE-2026-61777(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 24× in last 7d / 73× 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. 2026-09-21 03:59 UTCEG score recompute
  2. 2026-09-21 03:59 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 15:22 UTCGHSA enrichment
  5. 2026-09-20 02:45 UTCEG score recompute
  6. 2026-09-20 02:44 UTCGHSA enrichment
  7. 2026-09-19 14:07 UTCGHSA enrichment
  8. 2026-09-19 01:13 UTCEG score recompute
  9. 2026-09-19 01:13 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 12:35 UTCGHSA enrichment
  12. 2026-09-17 23:57 UTCEG score recompute
  13. 2026-09-17 23:57 UTCGHSA enrichment
  14. 2026-09-17 10:21 UTCGHSA enrichment
  15. 2026-09-16 21:44 UTCEG score recompute
  16. 2026-09-16 21:44 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 09:06 UTCEG score recompute
  19. 2026-09-16 09:06 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 19:44 UTCGHSA enrichment
  22. 2026-09-15 07:06 UTCEG score recompute
  23. 2026-09-15 07:06 UTCGHSA enrichment
  24. 2026-09-14 18:29 UTCGHSA enrichment
  25. 2026-09-14 05:36 UTCGHSA enrichment
Show 48 more
  1. 2026-09-13 16:59 UTCEG score recompute
  2. 2026-09-13 16:59 UTCGHSA enrichment
  3. 2026-09-13 04:22 UTCGHSA enrichment
  4. 2026-09-12 15:45 UTCEG score recompute
  5. 2026-09-12 15:45 UTCGHSA enrichment
  6. 2026-09-12 03:06 UTCEG score recompute
  7. 2026-09-12 03:06 UTCGHSA enrichment
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 14:29 UTCEG score recompute
  10. 2026-09-11 14:29 UTCGHSA enrichment
  11. 2026-09-11 09:37 UTCEPSS rescore
  12. 2026-09-11 01:52 UTCGHSA enrichment
  13. 2026-09-10 13:15 UTCEG score recompute
  14. 2026-09-10 13:15 UTCGHSA enrichment
  15. 2026-09-10 00:37 UTCGHSA enrichment
  16. 2026-09-09 11:59 UTCGHSA enrichment
  17. 2026-09-08 23:22 UTCEG score recompute
  18. 2026-09-08 23:22 UTCGHSA enrichment
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-08 07:28 UTCGHSA enrichment
  21. 2026-09-07 18:51 UTCEG score recompute
  22. 2026-09-07 18:51 UTCGHSA enrichment
  23. 2026-09-07 16:01 UTCEPSS rescore
  24. 2026-09-07 06:14 UTCGHSA enrichment
  25. 2026-09-06 17:37 UTCEG score recompute
  26. 2026-09-06 17:37 UTCGHSA enrichment
  27. 2026-09-06 13:47 UTCEPSS rescore
  28. 2026-09-06 04:59 UTCGHSA enrichment
  29. 2026-09-05 16:22 UTCEG score recompute
  30. 2026-09-05 16:22 UTCGHSA enrichment
  31. 2026-09-05 03:45 UTCGHSA enrichment
  32. 2026-09-04 15:08 UTCEG score recompute
  33. 2026-09-04 15:08 UTCGHSA enrichment
  34. 2026-09-04 05:07 UTCEPSS rescore
  35. 2026-09-04 02:28 UTCGHSA enrichment
  36. 2026-09-03 13:50 UTCGHSA enrichment
  37. 2026-09-03 01:11 UTCEG score recompute
  38. 2026-09-03 01:10 UTCGHSA enrichment
  39. 2026-09-02 14:12 UTCEPSS rescore
  40. 2026-09-02 12:31 UTCGHSA enrichment
  41. 2026-09-02 09:46 UTCGHSA enrichment
  42. 2026-09-01 21:07 UTCEG score recompute
  43. 2026-09-01 21:07 UTCGHSA enrichment
  44. 2026-09-01 17:22 UTCEG score recompute
  45. 2026-09-01 17:04 UTCEG score recompute
  46. 2026-09-01 16:25 UTCEG score recompute
  47. 2026-09-01 16:09 UTCEG score recompute
  48. 2026-09-01 16:08 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61777?
CVE-2026-61777 is a high vulnerability published on September 1, 2026. NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.
When was CVE-2026-61777 disclosed?
CVE-2026-61777 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61777 actively exploited?
CVE-2026-61777 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 89.2% of all scored CVEs.
What is the CVSS score of CVE-2026-61777?
CVE-2026-61777 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-61777?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61777, 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-2026-61777

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