Unauthenticated crypto and weak IV in Magento\Framework\Encryption
The __construct function in Framework/Encryption/Crypt.php in Magento 2 uses the PHP rand function to generate a random number for the initialization vector, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by guessing the value.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | magento/community-edition | >= 2.0, < 2.2.6 | 2.2.6 |
| Composer package | magento/project-community-edition | >= 2.0, <= 2.0.2 | no fix |
| Magento (core) | magento/community-edition | >= 2.0, < 2.2.6, >= 2.0, <= 2.0.2 | 2.2.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-6485
- https://github.com/magento/magento2/pull/15017
- https://github.com/FriendsOfPHP/security-advisories/blob/master/magento/product-community-edition/CVE-2016-6485.yaml
- http://www.openwall.com/lists/oss-security/2016/07/19/3
- http://www.openwall.com/lists/oss-security/2016/07/27/14
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-327- Platform
- Composer, Magento
- Package
magento/community-edition, magento/project-community-edition- Disclosed
- 20.11.2019
- Updated
- 11.10.2026 12:17
Sources and licenses
OSV / GitHub Advisory Database - GHSA-h7qw-mxrm-c6h2 - CC BY 4.0
Vulnerability history: magento/project-community-edition
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 161
- First → latest
- 11.2019 10.2025
- Without a fix
- 160
- Exploited in attacks
- 1
Severity breakdown
- Critical 24
- High 48
- Medium 77
- Low 12
Disclosures per year
- 2019: 1
- 2020: 0
- 2021: 0
- 2022: 63
- 2023: 31
- 2024: 23
- 2025: 43
- 2026: 0
-
Unauthenticated crypto and weak IV in Magento\Framework\Encryption this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.