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CVE-2015-8866

Published: May 22, 2016Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-611
9.6CRITICAL
NVD MITRE
EPSS Score
4.0%
Top 10.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x before 5.6.6, when PHP-FPM is used, does not isolate each thread from libxml_disable_entity_loader changes in other threads, which allows remote attackers to conduct XML External Entity (XXE) and XML Entity Expansion (XEE) attacks via a crafted XML document, a related issue to CVE-2015-5161.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-611

Affected Products

opensuse
oss-project·DE
leapOn-premOS
Operating Systems / linux-distro
opensuseOn-premOS
Operating Systems / linux-distro
suse
commercial·DE
linux enterprise module for web scriptingOn-premOS
Operating Systems / linux-distro
linux enterprise software development kitOn-premOS
Operating Systems / linux-distro
php
oss-project·USaka pear, php language, pecl
phpDev Tool
OSS Libraries / generic-library
canonical
commercial·GBaka canonical ltd.
ubuntu linuxOn-premOS
Operating Systems / linux-distro
PHP Group
oss-projectaka php, pear
PHPLibraryLibrary
OSS Libraries
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2015-8866?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Initial Access
View detailed technique mapping

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=de31324c221c1791b26350ba106cc26bad23ace9
git.php.net
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
lists.opensuse.org
and 14 more references View all →

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