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NVD / CVE Program· CNA redhat

CVE-2016-5385: PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from…

HighCVSS 8.1 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Plan (action score 47/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 50.4% (FIRST EPSS); higher than 98.9% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: php5 (Debian:7) 5.4.45-0+deb7u6; php5 (Debian:8) 5.6.24+dfsg-0+deb8u1; platformsh-cli (openSUSE:Tumbleweed) 3.67.2-1.2.

Add it to your regular patch cycle. Upgrade to php5 (Debian:7) 5.4.45-0+deb7u6; php5 (Debian:8) 5.6.24+dfsg-0+deb8u1; platformsh-cli (openSUSE:Tumbleweed) 3.67.2-1.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, as demonstrated by (1) an application that makes a getenv('HTTP_PROXY') call or (2) a CGI configuration of PHP, aka an "httpoxy" issue.

Published
Jul 18, 2016
Updated
Jun 16, 2026
EPSS
50.4% · 98th percentile

Report tools

JSON

Action score

47

Plan

Add it to your regular patch cycle.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
15 / 30 · 50.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
hpstoreever msl6480 tape library firmware
hpstoreever msl6480 tape library
hpsystem management homepage
oraclecommunications user data repository
oracleenterprise manager ops center
oraclelinux
fedoraprojectfedora
phpphp
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux workstation
debiandebian linux

and 2 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • php php5.5.0 and later · before 5.5.38
  • php php5.6.0 and later · before 5.6.24
  • php php7.0.0 and later · up to 7.0.8 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:7php5before 5.4.45-0+deb7u65.4.45-0+deb7u6
Debian:8php5before 5.6.24+dfsg-0+deb8u15.6.24+dfsg-0+deb8u1
openSUSE:Tumbleweedplatformsh-clibefore 3.67.2-1.23.67.2-1.2
Packagistamphp/artaxfrom 2.0.0 · before 2.0.42.0.4
Packagistamphp/artaxbefore 1.0.41.0.4
Packagistbugsnag/bugsnag-laravelbefore 2.0.22.0.2
Packagistdrupal/corefrom 8.0 · before 8.1.78.1.7
Packagistguzzlehttp/guzzlefrom 4.0.0-rc2 · before 4.2.44.2.4
Packagistguzzlehttp/guzzlefrom 5 · before 5.3.15.3.1
Packagistguzzlehttp/guzzlefrom 6 · before 6.2.16.2.1
Packagistpadraic/humbug_get_contentsbefore 1.1.21.1.2
Red Hat:enterprise_linux:6::clientphpbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-bcmathbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-clibefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-commonbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-dbabefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-debuginfobefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-develbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-embeddedbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-enchantbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-fpmbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-gdbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-imapbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8
Red Hat:enterprise_linux:6::clientphp-intlbefore 0:5.3.3-48.el6_80:5.3.3-48.el6_8

+96

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:php55.4.45-0+deb7u6 · Debian:7Package registry (OSV)
opensuse:platformsh-cli3.67.2-1.2 · openSUSE:TumbleweedPackage registry (OSV)
Packagist:amphp/artax1.0.4Package registry (OSV)
Packagist:amphp/artax2.0.4Package registry (OSV)
Packagist:bugsnag/bugsnag-laravel2.0.2Package registry (OSV)
Packagist:drupal/core8.1.7Package registry (OSV)
Packagist:guzzlehttp/guzzle4.2.4Package registry (OSV)
Packagist:guzzlehttp/guzzle5.3.1Package registry (OSV)
Packagist:guzzlehttp/guzzle6.2.1Package registry (OSV)
Packagist:padraic/humbug_get_contents1.1.2Package registry (OSV)
red hat:php0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-bcmath0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-cli0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-common0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-dba0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-debuginfo0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-devel0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-embedded0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-enchant0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-fpm0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-gd0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
red hat:php-imap0:5.3.3-48.el6_8 · Red Hat:enterprise_linux:6::clientPackage registry (OSV)
suse:php55.5.14-68.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package registry (OSV)
suse:php77.0.7-25.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records