CVE-2016-3674

Multiple XML external entity (XXE) vulnerabilities in the (1) Dom4JDriver, (2) DomDriver, (3) JDomDriver, (4) JDom2Driver, (5) SjsxpDriver, (6) StandardStaxDriver, and (7) WstxDriver drivers in XStream before 1.4.9 allow remote attackers to read arbitrary files via a crafted XML document.

Published: 2016-05-17 Last update: 2025-05-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-3674 is rated High Risk (67.2/100): CVSS High severity, with high exploitation likelihood (EPSS 8.40%, 94th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.18% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-3674

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 4.22% 8.40% +4.18%
2 2026-04-14 2.86% 4.22% +1.36%
3 2025-10-15 2.86%

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3674

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-3674

GitHub Security Advisory for CVE-2016-3674

GHSA-rgh3-987h-wpmw · Severity: high · Ecosystem: maven — XML External Entity Injection in XStream

OS Trackers for CVE-2016-3674

vendor priority summary link
debian not yet assigned CVE-2016-3674 not yet assigned priority: Debian including 1 source packages (libxstream-java), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-3674
redhat medium https://access.redhat.com/security/cve/CVE-2016-3674
suse high https://www.suse.com/security/cve/CVE-2016-3674/
ubuntu medium CVE-2016-3674 medium priority: Ubuntu including 1 source packages (libxstream-java), 22 status rows across 22 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 14, ignored 5, released 3. https://ubuntu.com/security/CVE-2016-3674

Affected software / configurations for CVE-2016-3674

Vendor Product Version Raw CPE
redhat jboss_middleware 1 cpe:2.3:a:redhat:jboss_middleware:1:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
fedoraproject fedora 22 cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
fedoraproject fedora 23 cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
xstream xstream < 1.4.9 cpe:2.3:a:xstream:xstream:*:*:*:*:*:*:*:*

References for CVE-2016-3674

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183180.html Broken Link Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183208.html Broken Link Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2822.html Broken Link
http://rhn.redhat.com/errata/RHSA-2016-2823.html Broken Link
http://www.debian.org/security/2016/dsa-3575 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/25/8 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/03/28/1 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/85381 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036419 Third Party Advisory VDB Entry
http://x-stream.github.io/changes.html#1.4.9 Vendor Advisory
https://github.com/x-stream/xstream/issues/25 Vendor Advisory
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