CVE-2023-42441 is a medium-severity vulnerability affecting Vyper, a Pythonic Smart Contract Language for the Ethereum Virtual Machine (EVM), specifically versions 0.2.9 through 0.3.9. It stems from a flaw where non-empty string reentrancy locks (e.g., @nonreentrant("") or @nonreentrant('')) fail to perform runtime reentrancy checks, potentially leading to unexpected contract behavior. The vulnerability has a CVSS score of 5.3 (Medium) with a vector of AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N, indicating it can be exploited remotely with low complexity, resulting in a low impact on integrity without requiring user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low immediate threat level.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.2.9, < 0.3.10CPE matchmatch criteria | cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:* |
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.