CVE-2021-48018

Published: Ott 21, 2026 Last Modified: Ott 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
HIGH 7,4
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high

Description

AI Translation Available

Vyper from 0.2.13 before 0.2.15 allocates storage slots for @nonreentrant reentrancy locks at the same locations as contract storage variables. When a function using @nonreentrant is called, setting the lock overwrites the overlapping storage variable, corrupting contract state and breaking the contract's intended logic.

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Memory-Unsafe, C, C++, Assembly
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
https://github.com/vyperlang/vyper/security/advisories/GHSA…
https://github.com/vyperlang/vyper/security/advisories/GHSA-7f92-rr6w-cq64
https://www.vulncheck.com/advisories/vyper-0.2.13-before-0.…
https://www.vulncheck.com/advisories/vyper-0.2.13-before-0.2.15-storage-corrupt…