CVE-2025-51679

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

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

An issue was discovered in openRISC OR1200 commit 83ac6b. A mismatch between the RTL and netlist can lead to unexpected behavior.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

August 26, 2026

Last Modified

September 9, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
No patch confirmed yet.
generic

[2504.18812] SynFuzz: Leveraging Fuzzing of Netlist to Detect Synthesis Bugs

https://www.arxiv.org/abs/2504.18812
generic

SynFuzz CVE

https://mason.gmu.edu/~rsaravan/projects/synfuzz/cve/cve.html
generic

Synthesis Bugs: PC and Executed Insn · Issue #161 · openrisc/mor1kx · GitHub

https://github.com/openrisc/mor1kx/issues/161

Vendor Advisories for CVE-2025-51679(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 51× in last 7d / 169× 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.

Showing the most recent 100 of 169 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-51679?
CVE-2025-51679 is a critical vulnerability published on August 26, 2026. An issue was discovered in openRISC OR1200 commit 83ac6b. A mismatch between the RTL and netlist can lead to unexpected behavior.
When was CVE-2025-51679 disclosed?
CVE-2025-51679 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-51679 actively exploited?
CVE-2025-51679 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 71.1% of all scored CVEs.
What is the CVSS score of CVE-2025-51679?
CVE-2025-51679 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-51679?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-51679, 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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