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CVE-2018-7584

85
FAUCET Score

CVE-2018-7584 is a critical stack-based buffer under-read vulnerability in the php_stream_url_wrap_http_ex function within PHP versions through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, affecting various Canonical and Debian Linux distributions. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low complexity, requiring no user interaction or privileges, and can lead to complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, an ExploitDB entry (EDB-44846) exists, and the CVE has garnered significant community discussion, indicating awareness and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.6.33CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.0.28CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.1.0, <= 7.1.14CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 7.2.0, <= 7.2.2CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
87.61%
Probability of exploitation in next 30 days
EPSS Percentile
99.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-44846 · Jun 6, 2018
This CVE's current EPSS score of 0.8761 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: php-0:5.4.16-48.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-php71-php-0:7.1.30-1.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php56-php
redhatend of lifevia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-php70-php

Vendor Advisories (1)

redhatCVE-2018-7584Moderate

php: Stack-based buffer under-read in php_stream_url_wrap_http_ex() in http_fopen_wrapper.c when parsing HTTP response

Feb 20, 2018

References

php.net / ChangeLog-7.php
Release Notes
access.redhat.com / errata/RHSA-2019:2519
bugs.php.net / bug.php
Issue Tracking
github.com / php/php-src/commit/523f230c831d7b33353203fa34aee4e92ac12bba
Patch
lists.debian.org / debian-lts-announce/2018/03/msg00030.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/06/msg00005.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 3600-1
Third Party Advisory
usn.ubuntu.com / 3600-2
Third Party Advisory
debian.org / security/2018/dsa-4240
Third Party Advisory
exploit-db.com / exploits/44846
ExploitThird Party AdvisoryVDB Entry
tenable.com / security/tns-2018-03
Third Party Advisory
tenable.com / security/tns-2018-12
Third Party Advisory
securityfocus.com / bid/103204
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041607
Third Party AdvisoryVDB Entry