CVE-2016-1000004

9.8 criticalEPSS 0.7%

Critical (9.8) in facebook hhvm. EPSS 0.7% chance of exploitation in the next 30 days.

Insufficient type checks were employed prior to casting input data in SimpleXMLElement_exportNode and simplexml_import_dom. This issue affects HHVM versions prior to 3.9.5, all versions between 3.10.0 and 3.12.3 (inclusive), and all versions between 3.13.0 and 3.14.1 (inclusive).

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-345
Published: 2020-02-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

facebook:hhvm

References

https://github.com/facebook/hhvm/commit/8e7266fef1f329b805b37f32c9ad0090215ab269
https://www.facebook.com/security/advisories/cve-2016-1000004
https://github.com/facebook/hhvm/commit/8e7266fef1f329b805b37f32c9ad0090215ab269
https://www.facebook.com/security/advisories/cve-2016-1000004

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