CVE-2016-9318

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.94% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 85.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. 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

2016-11-16 00:00Z9 YR AGO

Last updated

2025-12-04 16:39Z9 MO AGO

Reserved

2016-11-14

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-611Improper Restriction of XML External Entity ReferenceBase

Data version

5.2

Document digest

a14f825a6419b4b48f7c4806d2c6e46ef8ae6debe0d6bbfbdddfeaa66db69683

• bugzilla.gnome.orghttps://bugzilla.gnome.org/show_bug.cgi?id=772726x_refsource_MISC
• github.comhttps://github.com/lsh123/xmlsec/issues/43x_refsource_MISC
• usn.ubuntu.comUSN-3739-1https://usn.ubuntu.com/3739-1/vendor-advisoryx_refsource_UBUNTU
• security.gentoo.orgGLSA-201711-01https://security.gentoo.org/glsa/201711-01vendor-advisoryx_refsource_GENTOO
• www.securityfocus.com94347http://www.securityfocus.com/bid/94347vdb-entryx_refsource_BID
• usn.ubuntu.comUSN-3739-2https://usn.ubuntu.com/3739-2/vendor-advisoryx_refsource_UBUNTU
• lists.debian.org[debian-lts-announce] 20220408 [SECURITY] [DLA 2972-1] libxml2 security updatehttps://lists.debian.org/debian-lts-announce/2022/04/msg00004.htmlmailing-listx_refsource_MLIST