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CVE-2016-3720

31
FAUCET Score

CVE-2016-3720 is an XML External Entity (XXE) vulnerability in the XmlMapper component of the Jackson Dataformat XML library, affecting products like fasterxml jackson-dataformat-xml and fedoraproject jackson-dataformat-xml. This critical vulnerability (CVSS 9.8) allows unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability over the network with low attack complexity. Despite its severity, there is no known active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
24CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
<= 2.7.3CPE matchmatch criteria
cpe:2.3:a:fasterxml:jackson-dataformat-xml:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.78%
Probability of exploitation in next 30 days
EPSS Percentile
84.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0278 is in the 76th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: com.fasterxml.jackson.dataformat:jackson-dataformat-xmlFixed in: 2.7.4

Vendor Advisories (1)

mavenGHSA-hmq6-frv3-4727critical

jackson-dataformat-xml vulnerable to XML external entity (XXE)

Oct 18, 2018

References

lists.fedoraproject.org / pipermail/package-announce/2016-May/184561.html
Third Party Advisory