CVE-2017-7957
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/>")…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.93%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.93% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- redhat/fuse · redhat/jboss middleware · xstream/xstream · debian/debian linux
- Source
- cve@mitre.org
EPSS 4.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.