What’s Vulnerable › Vulnerabilities

CVE-2011-0755

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-02-02 · updated 2026-06-16
• Weakness: CWE-189

Description

Integer overflow in the mt_rand function in PHP before 5.3.4 might make it easier for context-dependent attackers to predict the return values by leveraging a script's use of a large max parameter, as demonstrated by a value that exceeds mt_getrandmax.

Affected products

• PHP: through 5.3.3; 1.0, 2.0, 2.0b10, 3.0, 3.0.1, 3.0.2 (+100)

References

• http://bugs.php.net/46587
• http://www.php.net/ChangeLog-5.php
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65426
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12589
• http://bugs.php.net/46587
• http://www.php.net/ChangeLog-5.php
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65426
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12589

Get alerted when CVE-2011-0755 or the next vulnerability affects your stack