What’s Vulnerable › Vulnerabilities

CVE-2016-1000006

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-19 · updated 2026-06-17
• Weakness: CWE-416

Description

hhvm before 3.12.11 has a use-after-free in the serialize_memoize_param() and ResourceBundle::__construct() functions.

Affected products

• Facebook HHVM: before 3.12.11 — fixed in 3.12.11

How to fix

Upgrade to a fixed version: Facebook HHVM 3.12.11. Check the vendor advisory for mitigations.

References

• https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1000006.html
• https://security-tracker.debian.org/tracker/CVE-2016-1000006
• https://www.mail-archive.com/debian-devel-changes%40lists.debian.org/msg506329.html
• https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1000006.html
• https://security-tracker.debian.org/tracker/CVE-2016-1000006
• https://www.mail-archive.com/debian-devel-changes%40lists.debian.org/msg506329.html

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