CVE-2021-39193 describes a bug in Frontier's pallet-ethereum, affecting Substrate's Ethereum compatibility layer, where invalid transactions with oversized input data could be included in the Ethereum block state. While these transactions appear included, they are rejected by the EVM and have no impact on the internal Ethereum or Substrate state. The vulnerability carries a CVSS score of 5.3 (Medium), indicating a network-based attack with low complexity and no user interaction required. The potential impact is limited to low integrity, as it doesn't alter system state. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting a low level of public awareness or concern.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2021-09-03CPE matchmatch criteria | cpe:2.3:a:parity:frontier:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.