---
cve: "CVE-2025-54426"
severity: "CRITICAL"
cvss: 9.9
epss: "0.4%"
vendor: "polkadot-evm"
kev: false
exploited: false
published: "2025-07-28 21:15:26"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-11T03:00:28+01:00"
---

# CVE-2025-54426

> 9.9 CRITICAL · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2025-07-28 20:26:18
- CNA-CVSS: **9.9** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:H/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:H/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-327** — Use of a Broken or Risky Cryptographic Algorithm
  The product uses a broken or risky cryptographic algorithm or protocol.

## Angriffsmuster (CAPEC)

- [CAPEC-20 — Encryption Brute Forcing](https://capec.mitre.org/data/definitions/20.html) _(Severity: Low)_
- [CAPEC-97 — Cryptanalysis](https://capec.mitre.org/data/definitions/97.html) _(Severity: Very High)_
- [CAPEC-459 — Creating a Rogue Certification Authority Certificate](https://capec.mitre.org/data/definitions/459.html) _(Severity: Very High)_
- [CAPEC-473 — Signature Spoof](https://capec.mitre.org/data/definitions/473.html)
- [CAPEC-475 — Signature Spoofing by Improper Validation](https://capec.mitre.org/data/definitions/475.html) _(Severity: High)_
- [CAPEC-608 — Cryptanalysis of Cellular Encryption](https://capec.mitre.org/data/definitions/608.html) _(Severity: High)_
- [CAPEC-614 — Rooting SIM Cards](https://capec.mitre.org/data/definitions/614.html) _(Severity: High)_

## ATT&CK-Techniken

- [T1036.001 — Masquerading: Invalid Code Signature](https://attack.mitre.org/techniques/T1036/001/)
- [T1553.002 — Subvert Trust Controls: Code Signing](https://attack.mitre.org/techniques/T1553/002/)

## Patch verfügbar (OSV)

- 36f70d1 (Commit)
- 36f70d1defcaeaed5a453015f6c98c21bb5b121b (Commit)

## Referenzen

- <https://github.com/polkadot-evm/frontier/security/advisories/GHSA-v4q3-23rh-w5mw>
- <https://github.com/polkadot-evm/frontier/pull/1720/commits/8ed6053fb868495477ba2409f7e64f439df76f96>
- <https://github.com/polkadot-evm/frontier/commit/36f70d1defcaeaed5a453015f6c98c21bb5b121b>
- <https://dotpal.io/assets/files/frontier-srlabs-2505-718c3bfa5df9fed1862fed05de506859.pdf>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-54426/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_