VULNERABILITY INTELLIGENCE
CVE-2021-38196
CVSS score9.8 CRITICAL
EPSS probability2.57%
CISA KEVNot currently listed
Published2021-08-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose.
Weakness classification
- nvd@nist.gov: CWE-94
Primary references
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Exploit, Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Patch, Third Party Advisory