How severe is CVE-2016-3720?

CVE-2016-3720 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-3720 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3720?

CVE-2016-3720 primarily affects Fasterxml Jackson-dataformat-xml. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3720?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-3720 published?

CVE-2016-3720 was published on 2016-06-10 and last updated on 2026-06-17.

CVE-2016-3720

CVE-2016-3720 is a critical-severity vulnerability in Fasterxml Jackson-dataformat-xml with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Fasterxml Jackson-dataformat-xml
Published: 2016-06-10
Last modified: 2026-06-17

Description

XML external entity (XXE) vulnerability in XmlMapper in the Data format extension for Jackson (aka jackson-dataformat-xml) allows attackers to have unspecified impact via unknown vectors.

Frequently asked questions

What is CVE-2016-3720?: XML external entity (XXE) vulnerability in XmlMapper in the Data format extension for Jackson (aka jackson-dataformat-xml) allows attackers to have unspecified impact via unknown vectors.
How severe is CVE-2016-3720?: CVE-2016-3720 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-3720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3720?: CVE-2016-3720 primarily affects Fasterxml Jackson-dataformat-xml. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3720?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-3720 published?: CVE-2016-3720 was published on 2016-06-10 and last updated on 2026-06-17.

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184561.html

Affected products (2)

cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*
cpe:2.3:a:fasterxml:jackson-dataformat-xml:*:*:*:*:*:*:*:*

More vulnerabilities in Fasterxml Jackson-dataformat-xml

CVE-2016-7051 — High (CVSS 8.6): XmlMapper in the Jackson XML dataformat component (aka jackson-dataformat-xml) before 2.7.8 and 2.8.x before 2.8.4…

All CVEs affecting Fasterxml Jackson-dataformat-xml →