vyper is a Pythonic Smart Contract Language for the EVM. Vyper handles AugAssign statements by first caching the target location to avoid double evaluation. However, in the case when target is an access to a DynArray and the rhs modifies the array, the cached target will evaluate first, and the bounds check will not be re-evaluated during the write portion of the statement. This issue has been addressed in version 0.4.1 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
                
            References
                    | Link | Resource | 
|---|---|
| https://github.com/vyperlang/vyper/security/advisories/GHSA-4w26-8p97-f4jp | Vendor Advisory Exploit | 
Configurations
                    History
                    28 Mar 2025, 20:02
| Type | Values Removed | Values Added | 
|---|---|---|
| First Time | Vyperlang Vyperlang vyper | |
| References | () https://github.com/vyperlang/vyper/security/advisories/GHSA-4w26-8p97-f4jp - Vendor Advisory, Exploit | |
| CPE | cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:python:*:* | |
| Summary | 
 | 
22 Feb 2025, 16:15
| Type | Values Removed | Values Added | 
|---|---|---|
| CVSS | v2 : v3 : | v2 : unknown v3 : 9.1 | 
21 Feb 2025, 22:15
| Type | Values Removed | Values Added | 
|---|---|---|
| New CVE | 
Information
                Published : 2025-02-21 22:15
Updated : 2025-03-28 20:02
NVD link : CVE-2025-27105
Mitre link : CVE-2025-27105
CVE.ORG link : CVE-2025-27105
JSON object : View
Products Affected
                vyperlang
- vyper
CWE
                
                    
                        
                        CWE-787
                        
            Out-of-bounds Write
