What’s Vulnerable › Vulnerabilities

CVE-2016-7411

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2016-09-17 · updated 2026-06-17
• Weakness: CWE-119

Description

ext/standard/var_unserializer.re in PHP before 5.6.26 mishandles object-deserialization failures, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an unserialize call that references a partially constructed object.

Affected products

• PHP: through 5.6.25

References

• http://www.openwall.com/lists/oss-security/2016/09/15/10
• http://www.php.net/ChangeLog-5.php
• http://www.securityfocus.com/bid/93009
• http://www.securitytracker.com/id/1036836
• https://bugs.php.net/bug.php?id=73052
• https://github.com/php/php-src/commit/6a7cc8ff85827fa9ac715b3a83c2d9147f33cd43?w=1
• https://security.gentoo.org/glsa/201611-22
• http://www.openwall.com/lists/oss-security/2016/09/15/10
• http://www.php.net/ChangeLog-5.php
• http://www.securityfocus.com/bid/93009
• http://www.securitytracker.com/id/1036836
• https://bugs.php.net/bug.php?id=73052

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