Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2021-41264— UUPSUpgradeable vulnerability in OpenZeppelin Contracts

CVSS 9.8 · Critical EPSS 0.64% · P71
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2021-41264

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
UUPSUpgradeable vulnerability in OpenZeppelin Contracts
Source: NVD (National Vulnerability Database)
Vulnerability Description
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 version 4.3.2 of `@openzeppelin/contracts` and `@openzeppelin/contracts-upgradeable`. For users unable to upgrade; initialize implementation contracts using `UUPSUpgradeable` by invoking the initializer function (usually called `initialize`). An example is provided [in the forum](https://forum.openzeppelin.com/t/security-advisory-initialize-uups-implementation-contracts/15301).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
初始化不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenZeppelin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin Contracts 4.3.2之前版本存在安全漏洞，攻击者可利用该漏洞进行未初始化契约攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
OpenZeppelinopenzeppelin-contracts >= 4.1.0 < 4.3.2 -

II. Public POCs for CVE-2021-41264

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-41264

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: openzeppelin-contracts
Same vendor: OpenZeppelin
Same weakness: CWE-665

V. Comments for CVE-2021-41264

No comments yet

Leave a comment