CVE-2020-37288
Vyper 0.1.0b10 before 0.2.3 Invalid Jump Destination via Return in Nested Loops
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
Vyper from 0.1.0b10 before 0.2.3 generates incorrect code for a return statement inside a for loop in an internal function called two or more internal calls deep, producing an invalid jump destination (stack underflow). Affected contracts revert such calls unnecessarily, which in limited circumstances could enable denial of service against public contracts.
| CWE | CWE-670 |
| Vendor | vyperlang |
| Product | vyper |
| Published | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
vyperlang / vyper
0.1.0b10 < 0.2.3
References
Credits
iamdefinitelyahuman