CVE-2015-8866

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

4.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 89.7% of scored records. A rank, not a probability.

NVD base score

9.6 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-05-22 01:00Z10 YR AGO

Last updated

2024-08-06 08:29Z2 YR AGO

Reserved

2016-04-23

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase

Data version

5.1

Document digest

928ca8a44dc07ecddc0787c450ca3c407e150ef12137cf03f86b72ccda247635

• www.ubuntu.comUSN-2952-1http://www.ubuntu.com/usn/USN-2952-1vendor-advisoryx_refsource_UBUNTU
• git.php.nethttp://git.php.net/?p=php-src.git%3Ba=commit%3Bh=de31324c221c1791b26350ba106cc26bad23ace9x_refsource_CONFIRM
• bugs.launchpad.nethttps://bugs.launchpad.net/ubuntu/+source/php5/+bug/1509817x_refsource_CONFIRM
• rhn.redhat.comRHSA-2016:2750http://rhn.redhat.com/errata/RHSA-2016-2750.htmlvendor-advisoryx_refsource_REDHAT
• www.ubuntu.comUSN-2952-2http://www.ubuntu.com/usn/USN-2952-2vendor-advisoryx_refsource_UBUNTU
• www.php.nethttp://www.php.net/ChangeLog-5.phpx_refsource_CONFIRM
• bugs.php.nethttps://bugs.php.net/bug.php?id=64938x_refsource_CONFIRM
• www.securityfocus.com87470http://www.securityfocus.com/bid/87470vdb-entryx_refsource_BID
• lists.opensuse.orgopenSUSE-SU-2016:1274http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgSUSE-SU-2016:1277http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.htmlvendor-advisoryx_refsource_SUSE
• www.openwall.com[oss-security] 20160423 Re: CVE request: PHP issues fixed in 7.0.5, 5.6.20 and 5.5.34 releaseshttp://www.openwall.com/lists/oss-security/2016/04/24/1mailing-listx_refsource_MLIST
• lists.opensuse.orgopenSUSE-SU-2016:1373http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.htmlvendor-advisoryx_refsource_SUSE