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
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| 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/community-edition
All published vulnerabilities of this package (Magento (core)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 360
- First → latest
- 11.2019 10.2025
- Without a fix
- 3
- Exploited in attacks
- 3
Severity breakdown
- Critical 47
- High 104
- Medium 192
- Low 17
Disclosures per year
- 2019: 7
- 2020: 0
- 2021: 0
- 2022: 214
- 2023: 32
- 2024: 62
- 2025: 45
- 2026: 0
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Unauthenticated crypto and weak IV in Magento\Framework\Encryption this entry
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