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CVE-2017-7189

25
FAUCET Score

CVE-2017-7189 describes a vulnerability in PHP 7.x versions prior to 2017-03-07, where the fsockopen function misparses host and port arguments, potentially leading to an application connecting to an unintended port. This flaw, rated High severity with a CVSS score of 7.5, allows an unauthenticated attacker to bypass security policies if the hostname is derived from untrusted input. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, < 7.0.16CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.49%
Probability of exploitation in next 30 days
EPSS Percentile
83.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0249 is in the 70th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: php:7.2/php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php70-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php71-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php72-php

Vendor Advisories (1)

redhatCVE-2017-7189Moderate

php: misparsing fsockopen calls in main/streams/xp_socket.c leads to information disclosure

Jul 31, 2019

References

bugs.php.net / bug.php
Permissions RequiredVendor Advisory
github.com / php/php-src/commit/bab0b99f376dac9170ac81382a5ed526938d595a
PatchThird Party Advisory