CVE-2016-5095
high-risk
Published 2016-08-07
Integer overflow in the php_escape_html_entities_ex function in ext/standard/html.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a large output string from a FILTER_SANITIZE_FULL_SPECIAL_CHARS filter_var call. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-5094.
Do I need to act?
-
0.95% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (12)
Release Notes
http://php.net/ChangeLog-5.php
Release Notes
http://www.openwall.com/lists/oss-security/2016/05/26/3
Release Notes
http://php.net/ChangeLog-5.php
Release Notes
http://www.openwall.com/lists/oss-security/2016/05/26/3
55
/ 100
high-risk
Severity
29/34 · Critical
Exploitability
3/34 · Minimal
Exposure
23/34 · High