CVE-2017-7957

Name: CVE-2017-7957
Creator: NVD / NIST
Published: 2017-04-29T19:59:00.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.06%

Last modified Jun 17, 2026

CVE-2017-7957 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. XStream through 1.4.9, when a certain denyTypes workaround is not used, mishandles attempts to create an instance of the primitive type 'void' during unmarshalling, leading to a remote application crash, as demonstrated by an xstream.fromXML("<void/>") call.. EPSS estimates a 5.06% chance of exploitation in the next 30 days.

Description

XStream through 1.4.9, when a certain denyTypes workaround is not used, mishandles attempts to create an instance of the primitive type 'void' during unmarshalling, leading to a remote application crash, as demonstrated by an xstream.fromXML("<void/>") call.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.06%

91.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Redhat	Fuse	1.0
Redhat	Jboss Middleware	1
Xstream	Xstream	<= 1.4.9
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

http://www.debian.org/security/2017/dsa-3841Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100687Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039499Broken Link, Third Party Advisory, VDB Entry
http://x-stream.github.io/CVE-2017-7957.htmlVendor Advisory
https://access.redhat.com/errata/RHSA-2017:1832Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2888Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2889Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/125800Third Party Advisory, VDB Entry
https://www-prd-trops.events.ibm.com/node/715749Broken Link, Permissions Required
http://www.debian.org/security/2017/dsa-3841Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/100687Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039499Broken Link, Third Party Advisory, VDB Entry
http://x-stream.github.io/CVE-2017-7957.htmlVendor Advisory
https://access.redhat.com/errata/RHSA-2017:1832Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2888Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2889Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/125800Third Party Advisory, VDB Entry
https://www-prd-trops.events.ibm.com/node/715749Broken Link, Permissions Required

Timeline

Published: Apr 29, 2017
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2017-7957?

How severe is CVE-2017-7957?

CVE-2017-7957 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.06% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7957?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7957?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST