System	Score	Found at
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
epss	0.01156	https://api.first.org/data/v1/epss?cve=CVE-2015-6831
cvssv2	7.5	https://nvd.nist.gov/vuln/detail/CVE-2015-6831
cvssv3.1	7.3	https://nvd.nist.gov/vuln/detail/CVE-2015-6831

Reference id	Reference type	URL
		https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2015-6831.json
		https://api.first.org/data/v1/epss?cve=CVE-2015-6831
		https://bugs.php.net/bug.php?id=70155
		https://bugs.php.net/bug.php?id=70166
		https://bugs.php.net/bug.php?id=70168
		https://bugs.php.net/bug.php?id=70169
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4598
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4643
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4644
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5589
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5590
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6831
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6832
		https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6833
		http://www.debian.org/security/2015/dsa-3344
		http://www.openwall.com/lists/oss-security/2015/08/19/3
		http://www.php.net/ChangeLog-5.php
		http://www.securityfocus.com/bid/76737
1256290		https://bugzilla.redhat.com/show_bug.cgi?id=1256290
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*		https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*		https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*		https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2015-6831		https://nvd.nist.gov/vuln/detail/CVE-2015-6831
GLSA-201606-10		https://security.gentoo.org/glsa/201606-10
RHSA-2016:0457		https://access.redhat.com/errata/RHSA-2016:0457
USN-2758-1		https://usn.ubuntu.com/2758-1/

No exploits are available.

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6831

Exploitability (E)	Access Vector (AV)	Access Complexity (AC)	Authentication (Au)	Confidentiality Impact (C)	Integrity Impact (I)	Availability Impact (A)
high functional unproven proof_of_concept not_defined	local adjacent_network network	high medium low	multiple single none	none partial complete	none partial complete	none partial complete

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2015-6831

Attack Vector (AV)	Attack Complexity (AC)	Privileges Required (PR)	User Interaction (UI)	Scope (S)	Confidentiality Impact (C)	Integrity Impact (I)	Availability Impact (A)
network adjacent_network local physical	low high	none low high	none required	unchanged changed	high low none	high low none	high low none

Percentile	0.78487
EPSS Score	0.01156
Published At	April 1, 2026, 12:55 p.m.

Date	Actor	Action	Source	VulnerableCode Version
2026-04-01T13:02:49.899472+00:00	Gentoo Importer	Import	https://security.gentoo.org/glsa/201606-10	38.0.0