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
02 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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 4.92% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.8% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-08.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-04-29 19:00Z9 YR AGO
- Last updated
- 2026-10-08 21:03Z20 DAYS AGO
- Reserved
- 2017-04-19
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-20Improper Input ValidationClass
- Data version
- 5.2
- Document digest
- c7482a0fd66a666132cd13aa8e4e897dbec17d762ca726e753de5f72cd1c3a8f
05 Affected products
06 References
- access.redhat.comRHSA-2017:2888https://access.redhat.com/errata/RHSA-2017:2888
- access.redhat.comRHSA-2017:1832https://access.redhat.com/errata/RHSA-2017:1832
- access.redhat.comRHSA-2017:2889https://access.redhat.com/errata/RHSA-2017:2889
- www.securitytracker.com1039499http://www.securitytracker.com/id/1039499
- www-prd-trops.events.ibm.comhttps://www-prd-trops.events.ibm.com/node/715749
- exchange.xforce.ibmcloud.comxstream-cve20177957-dos(125800)https://exchange.xforce.ibmcloud.com/vulnerabilities/125800
- www.debian.orgDSA-3841http://www.debian.org/security/2017/dsa-3841
- x-stream.github.iohttp://x-stream.github.io/CVE-2017-7957.html
- www.securityfocus.com100687http://www.securityfocus.com/bid/100687
07 Fixed in
Debian 12
- libxstream-java Fixed in 1.4.9-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libxstream-java Fixed in 1.4.9-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libxstream-java Fixed in 1.4.9-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- libxstream-java Fixed in 1.4.7-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- libxstream-java Fixed in 1.4.8-1ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.