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9.1
CVE-2025-54426: Polkadot Frontier may return wrong crypto results
CVE-2025-54426 · published 1 year ago
Summary
Versions of Polkadot Frontier before a recent update mishandle certain cryptographic calculations, treating bad input as a neutral value instead of reporting an error. This can cause incorrect security checks or signatures. Upgrade to the latest version to ensure proper error handling.
Original advisory text
Polkadot Frontier contains silent failure in Curve25519 arithmetic precompiles with malformed points
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.
References
- https://dotpal.io/assets/files/frontier-srlabs-2505-718c3bfa5df9fed1862fed05de50... URL
- https://github.com/polkadot-evm/frontier/pull/1720/commits/8ed6053fb868495477ba2... URL
- https://github.com/polkadot-evm/frontier/security/advisories/GHSA-v4q3-23rh-w5mw Vendor Advisory
- https://github.com/polkadot-evm/frontier/commit/36f70d1defcaeaed5a453015f6c98c21... Patch
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54426... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-54426 Vendor Advisory
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically
- Gives an attacker partial control
Severity
9.1
Critical
Type
CWE-327Use of a Broken Cryptographic Algorithm
Timeline
Published28 Jul 2025
Updated4 Nov 2026
First seen7 Mar 2026
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