CVE-2016-6874
The array_*_recursive functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, related to recursion.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The array_*_recursive functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, related to recursion.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.01% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- facebook/hhvm
- Source
- cve@mitre.org
EPSS 2.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2016/08/11/1
- http://www.openwall.com/lists/oss-security/2016/08/19/1
- https://github.com/facebook/hhvm/commit/05e706d98f748f609b19d8697e490eaab5007d69
- http://www.openwall.com/lists/oss-security/2016/08/11/1
- http://www.openwall.com/lists/oss-security/2016/08/19/1
- https://github.com/facebook/hhvm/commit/05e706d98f748f609b19d8697e490eaab5007d69
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.