Frontier is Substrate's Ethereum compatibility layer. In affected versions the truncation done when converting between EVM balance type and Substrate balance type was incorrectly implemented. This leads to possible discrepancy between appeared EVM transfer value and actual Substrate value transferred. It is recommended that an emergency upgrade to be planned and EVM execution temporarily paused in the mean time. The issue is patched in Frontier master branch commit fed5e0a9577c10bea021721e8c2c5c378e16bf66 and polkadot-v0.9.22 branch commit e3e427fa2e5d1200a784679f8015d4774cedc934. This vulnerability affects only EVM internal states, but not Substrate balance states or node. You can temporarily pause EVM execution (by setting up a Substrate `CallFilter` that disables `pallet-evm` and `pallet-ethereum` calls before the patch can be applied.
総合評価: CVE-2022-31111 は中リスク(44.8/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.55%、67 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2025-12-05 | 0.42% | 0.55% | +0.13% |
| 2 | 2025-11-21 | 0.62% | 0.42% | -0.20% |
| 3 | 2025-11-18 | — | 0.62% | — |
EPSS の全履歴 (全 10 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| URL | タグ |
|---|---|
| https://github.com/paritytech/frontier/commit/e3e427fa2e5d1200a784679f8015d4774cedc934 | Patch Third Party Advisory |
| https://github.com/paritytech/frontier/commit/fed5e0a9577c10bea021721e8c2c5c378e16bf66 | Patch Third Party Advisory |
| https://github.com/paritytech/frontier/pull/753 | Issue Tracking Patch Third Party Advisory |
| https://github.com/paritytech/frontier/security/advisories/GHSA-hc8w-mx86-9fcj | Patch Third Party Advisory |