Vulnerability in Facebook Hhvm

CVE-2016-1000005

mcrypt_get_block_size did not enforce that the provided "module" parameter was a string, leading to type confusion if other types of data were passed in. This issue affects HHVM versions prior to 3.9.5, all versions between 3.10.0 and 3.12…

EPSS: 0.014 (69.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-1000005?
CVE-2016-1000005 is a critical-severity vulnerability in Facebook Hhvm, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 9.8/10. Published 2020-02-19.
How severe is CVE-2016-1000005?
Critical severity. CVSS v3 base score is 9.8 out of 10.