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 — 5 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
28%
KEV
Not listed

Published

August 26, 2026

Last Modified

August 27, 2026

Advisory Details (3)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

SynFuzz CVE

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

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

https://www.arxiv.org/abs/2504.18812
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 25× in last 7d / 25× 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. 2026-08-30 02:19 UTCEG score recompute
  2. 2026-08-30 02:19 UTCGHSA enrichment
  3. 2026-08-30 01:21 UTCEPSS rescore
  4. 2026-08-29 21:57 UTCGHSA enrichment
  5. 2026-08-29 17:36 UTCGHSA enrichment
  6. 2026-08-29 13:12 UTCGHSA enrichment
  7. 2026-08-29 08:46 UTCGHSA enrichment
  8. 2026-08-29 04:23 UTCGHSA enrichment
  9. 2026-08-28 23:59 UTCEG score recompute
  10. 2026-08-28 23:59 UTCGHSA enrichment
  11. 2026-08-28 21:40 UTCEPSS rescore
  12. 2026-08-28 18:36 UTCGHSA enrichment
  13. 2026-08-28 14:09 UTCGHSA enrichment
  14. 2026-08-28 09:42 UTCGHSA enrichment
  15. 2026-08-28 05:16 UTCGHSA enrichment
  16. 2026-08-28 00:50 UTCEG score recompute
  17. 2026-08-28 00:50 UTCGHSA enrichment
  18. 2026-08-27 20:28 UTCGHSA enrichment
  19. 2026-08-27 20:16 UTCEG score recompute▲ 9.10
  20. 2026-08-27 20:16 UTCGHSA enrichment
  21. 2026-08-27 20:13 UTCMITRE cvelistV5CVSS v3 → 9.1 · severity → CRITICAL
  22. 2026-08-27 14:24 UTCEPSS rescore
  23. 2026-08-26 21:25 UTCNVD update
  24. 2026-08-26 21:04 UTCEG score recompute
  25. 2026-08-26 21:01 UTCMITRE cvelistV5first tracked

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 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-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 72.1% 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

Explore the affected products and dependency analysis for CVE-2025-51679

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