CVE-2016-1000004
Insufficient type checks were employed prior to casting input data in SimpleXMLElement_exportNode...
CVE-2016-1000004 is a critical vulnerability (CVSS 9.8) in Facebook Hhvm, published February 19, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 53rd percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 0.68%EPSS, 53rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
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).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
hhvmUbuntu:16.04:LTS | All versions, plus listed versions 3.11.0+dfsg-13.11.1+dfsg-13.11.1+dfsg-1ubuntu1 | None known |
What each source reports
NVD Score used
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).
- Record
CVE-2016-1000004- 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 - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-345
- Updated
- 2026-11-02
CVE ListNo score
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).
- Record
CVE-2016-1000004- Updated
- 2026-11-02
EUVDEUVD-2016-1013No score
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).
- Record
EUVD-2016-1013- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hqgf-37rq-g39gNo score
Insufficient type checks were employed prior to casting input data in SimpleXMLElement_exportNode...
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).
- Record
GHSA-hqgf-37rq-g39g- Updated
- 2026-11-02
OSV
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).
- Record
CVE-2016-1000004- 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 - Updated
- 2026-11-04
OSVUBUNTU-CVE-2016-1000004
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).
- Record
UBUNTU-CVE-2016-1000004- 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 - Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/facebook/hhvm/commit/8e7266fef1f329b805b37f32c9ad0090215ab269
facebook.com/security/advisories/cve-2016-1000004
nvd.nist.gov/vuln/detail/CVE-2016-1000004
ubuntu.com/security/CVE-2016-1000004
qa.debian.org/cgi-bin/vcswatch?package=hhvm
cve.org/CVERecord?id=CVE-2016-1000004