CVE-2016-1902

7.5 HIGH
Published: June 01, 2016 Modified: May 06, 2026
View on NVD

Description

The nextBytes function in the SecureRandom class in Symfony before 2.3.37, 2.6.x before 2.6.13, and 2.7.x before 2.7.9 does not properly generate random numbers when used with PHP 5.x without the paragonie/random_compat library and the openssl_random_pseudo_bytes function fails, which makes it easier for attackers to defeat cryptographic protection mechanisms via unspecified vectors.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails
Source: cve@mitre.org
Vendor Advisory
http://www.debian.org/security/2016/dsa-3588
Source: cve@mitre.org
https://github.com/symfony/symfony/pull/17359
Source: cve@mitre.org
Patch
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/
Source: cve@mitre.org
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.debian.org/security/2016/dsa-3588
Source: af854a3a-2127-422b-91ae-364da2661108
https://github.com/symfony/symfony/pull/17359
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/
Source: af854a3a-2127-422b-91ae-364da2661108

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.4%
61th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-310

Affected Vendors

sensiolabs debian

Related CVEs

CVE-2026-8193 6.3
CVE-2026-8192 6.3
CVE-2026-8191 6.3
CVE-2026-8190 6.3
CVE-2026-8189 6.3