Vulnerability in Vyperlang Vyper
CVE-2025-27104
vyper is a Pythonic Smart Contract Language for the EVM. Multiple evaluation of a single expression is possible in the iterator target of a for loop. While the iterator expression cannot produce multiple writes, it can consume side effects…
EPSS: 0.004 (34.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Vyperlang Vyper — versions < 0.4.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2025-27104?
- CVE-2025-27104 is a high-severity vulnerability in Vyperlang Vyper, classified under Improper Synchronization. CVSS score: 7.5/10. Published 2025-02-21.
- How severe is CVE-2025-27104?
- High severity. CVSS v3 base score is 7.5 out of 10.