CVE-2025-54426

CRITICALNVD 9.99.9—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.9 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 77% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.9
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.9Exploit: NoneExposed: 0

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

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. In versions prior to commit 36f70d1, the Curve25519Add and Curve25519ScalarMul precompiles incorrectly handle invalid Ristretto point representations. Instead of returning an error, they silently treat invalid input bytes as the Ristretto identity element, leading to potentially incorrect cryptographic results. This is fixed in commit 36f70d1.

CVSS v3
9.9
EG Score
9.9(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity99% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
23.1%
KEV
Not listed

Published

July 28, 2025

Last Modified

April 15, 2026

Advisory Details (4)

Auto-updated Jul 20, 2026
Patch available. Sources: github_commit, github_pr, github.
github Patch Available

Silent failure in Curve25519 arithmetic precompiles with malformed points · Advisory · polkadot-evm/frontier · GitHub

https://github.com/polkadot-evm/frontier/security/advisories/GHSA-v4q3-23rh-w5mw
github_pr

fix: Silent failure in Curve25519 arithmetic precompiles with malformed points

Fix merged in polkadot-evm/frontier PR #1720 on 2025-07-28 — awaiting tagged release

https://github.com/polkadot-evm/frontier/pull/1720/commits/8ed6053fb868495477ba2409f7e64f439df76f96
github_commit

commit 36f70d1defca (polkadot-evm/frontier)

Fix landed in polkadot-evm/frontier commit 36f70d1defca — awaiting tagged release

https://github.com/polkadot-evm/frontier/commit/36f70d1defcaeaed5a453015f6c98c21bb5b121b
generic
https://dotpal.io/assets/files/frontier-srlabs-2505-718c3bfa5df9fed1862fed05de506859.pdf

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 43× 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 122 total refreshes for this CVE.

  1. 2026-07-24 14:17 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 02:58 UTCEG score recompute
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  44. 2026-06-08 15:52 UTCEG score recompute▲ 9.90
  45. 2026-06-08 14:16 UTCEPSS rescore
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  47. 2026-06-07 15:24 UTCEPSS rescore
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  57. 2026-06-02 22:10 UTCOSV refresh
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  75. 2026-05-26 13:44 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2025-54426?
CVE-2025-54426 is a critical vulnerability published on July 28, 2025. Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. In versions prior to commit 36f70d1, the Curve25519Add and Curve25519ScalarMul precompiles incorrectly handle invalid Ristretto point representations. Instead of returning an error, they silently treat invalid…
When was CVE-2025-54426 disclosed?
CVE-2025-54426 was first published in the National Vulnerability Database on July 28, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-54426 actively exploited?
CVE-2025-54426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-54426?
CVE-2025-54426 has a CVSS v3 base score of 9.9 (NVD).
How do I remediate CVE-2025-54426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-54426, 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.

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