Vulnerability DatabaseCVE-2021-3692
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CVE-2021-3692
Published:August 10, 2021
Updated:May 17, 2026
yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator
Affected Packages
yiisoft/yii2-dev (PHP):
Affected version(s) >=dev-ar-bug <2.0.43
Fix Suggestion:
Update to version 2.0.43
Related Resources (4)
https://github.com/yiisoft/yii2
https://nvd.nist.gov/vuln/detail/CVE-2021-3692
https://github.com/yiisoft/yii2/commit/13f27e4d920a05d53236139e8b07007acd046a46
https://huntr.dev/bounties/55517f19-5c28-4db2-8b00-f78f841e8aba
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CVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Use of Predictable Algorithm in Random Number Generator
CWE-1241
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
CWE-338
Use of Insufficiently Random Values
CWE-330
EPSS
Base Score:
0.36