MEDIUMCVSS v3.1 6.5Vulnerability
CVE-2021-48020
Vyper from 0.1.0b4 before 0.3.0 contains a memory corruption vulnerability caused by an incorrect stack tip pointer when internal function calls are performed inside arrays. Contracts placing internal calls in nested array elements, external call arguments, struct literals, or raw_log topics can have memory corrupted, producing incorrect contract behavior.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-22T22:14:18.200859+00:00
- Epss score
- 0.00284
- Cvss score
- 6.5
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-10-22T22:17:32+00:00
- Score
- 6.5
- Last source
- FIRST EPSS
- Cvss version
- 3.1
- Cve id
- CVE-2021-48020
- Cvss vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
- First seen by Signal
- 2026-10-21T22:34:38+00:00
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
- Published at
- 2026-10-21T01:17:19.300
- Last modified
- 2026-10-22T17:00:33.203
- Epss percentile
- 0.19827
Related Entities (1)
HAS_WEAKNESS (1)
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