CVE•Published 2017-02-17•Modified 2026-05-13•1 article on news•4 live references•NVD data

CVE-2016-6874Facebook · Hhvm

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

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Description

The array_*_recursive functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors, related to recursion.

Timeline

Published 2017-02-17

Modified 2026-05-13

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag42 hosts

vuln:CVE-2016-6874

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Facebook Hhvm"

All exposed Facebook Hhvm instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Hhvm"

HTTP body or banner mentions "Hhvm" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2016-6874

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2016-6874

Censys host search filtered to this CVE id.

grep.app

CVE-2016-6874

Public source-code mentions — fast PoC discovery.

GitHub code

CVE-2016-6874

GitHub code search for direct mentions.

Google dork

"CVE-2016-6874" exploit -site:nvd.nist.gov

Write-ups and news, NVD excluded.

Known PoCs on GitHub

No public proof-of-concept repositories found for CVE-2016-6874 on GitHub.