CVE-2025-54426 json
Polkadot Frontier contains silent failure in Curve25519 arithmetic precompiles with malformed points
published last yr. modified 4mo ago also EUVD-2025-22944
- cvss
- 9.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Is CVE-2025-54426 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 4.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- polkadot-evm frontier
Classification
- Weakness
-
- CWE-327 Use of a Broken or Risky Cryptographic Algorithm
References
- github.com /polkadot-evm/frontier/pull/1720/commits/8ed6053fb868495477ba2409f7e64f439df76f96
- github.com /polkadot-evm/frontier/commit/36f70d1defcaeaed5a453015f6c98c21bb5b121b
- github.com /polkadot-evm/frontier/security/advisories/GHSA-v4q3-23rh-w5mw
- dotpal.io /assets/files/frontier-srlabs-2505-718c3bfa5df9fed1862fed05de506859.pdf
Sources
- CVE List CVE-2025-54426
- NVD CVE-2025-54426
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