Vulnerability in Openzeppelin Contracts
CVE-2021-41264
OpenZeppelin Contracts is a library for smart contract development. In affected versions upgradeable contracts using `UUPSUpgradeable` may be vulnerable to an attack affecting uninitialized implementation contracts. A fix is included in ve…
Vulnerability class: Dirty Pipe (CVE-2022-0847)
EPSS: 0.014 (69.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Openzeppelin Contracts
- Openzeppelin Openzeppelin-contracts — versions >= 4.1.0 < 4.3.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC, Mitigation, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-41264?
- CVE-2021-41264 is a critical-severity vulnerability in Openzeppelin Contracts, classified under Improper Initialization. CVSS score: 9.8/10. Published 2021-11-12.
- How severe is CVE-2021-41264?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-41264 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.