CVE-2016-4070
No exploitation reported by the sources we read.
- Published2016-05-20
- WeaknessCWE-189
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Integer overflow in the php_raw_url_encode function in ext/standard/url.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to cause a denial of service (application crash) via a long string to the rawurlencode function. NOTE: the vendor says "Not sure if this qualifies as security issue (probably not).
Timeline
dates in UTC- 2016-05-2011:00CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-4070?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4070?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 5.5 | ≤ 5.5.33 | no fix published | NVD |
| 5.6 | = 5.6.0 | no fix published | NVD |
| 5.6 | = 5.6.1 | no fix published | NVD |
| 5.6 | = 5.6.2 | no fix published | NVD |
| 5.6 | = 5.6.3 | no fix published | NVD |
| 5.6 | = 5.6.4 | no fix published | NVD |
| 5.6 | = 5.6.5 | no fix published | NVD |
| 5.6 | = 5.6.6 | no fix published | NVD |
| 5.6 | = 5.6.7 | no fix published | NVD |
| 5.6 | = 5.6.8 | no fix published | NVD |
| 5.6 | = 5.6.9 | no fix published | NVD |
| 5.6 | = 5.6.10 | no fix published | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
No fix published by the sources we read yet. NVD record
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2016-05-20
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2016-4070?
Is CVE-2016-4070 actively exploited?
What is the CVSS score for CVE-2016-4070?
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