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CVE-2021-3689

HIGH
Published 2021-08-10T10:21:30
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CVSS Score

V3.0
8.1
/10
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.005
probability
of exploitation in the wild

There is a 0.5% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.652
Higher than 65.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

Use of Insufficiently Random Values in yiisoft/yii2-dev

GHSA-hq3v-rg6f-6hx4

Advisory Details

yii2 is vulnerable to Use of Predictable Algorithm in Random Number Generator

Affected Packages

Packagist yiisoft/yii2-dev
ECOSYSTEM: ≥0 <2.0.43

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Advisory provided by GitHub Security Advisory Database. Published: September 1, 2021, Modified: August 30, 2021

References

Published: 2021-08-10T10:21:30
Last Modified: 2024-08-03T17:01:07.696Z
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