CVE-2021-39141highCWE-434CWE-502

CVE-2021-39141: high-severity vulnerability in x-stream xstream

XStream is vulnerable to an Arbitrary Code Execution attack

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41Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 8.5epss 16%
XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
x-stream · xstream
Related CVEs — x-stream xstream

In the same product, most dangerous first.

CVE-2021-39144HIGHXStream is vulnerable to a Remote Command Execution attackEPSS 98.1%KEVCVE-2020-26217HIGHRemote Code Execution in XStreamEPSS 85.0%CVE-2020-26259MEDIUMXStream is vulnerable to an Arbitrary File Deletion on the local host when unmarshallingEPSS 82.4%CVE-2021-21351MEDIUMXStream is vulnerable to an Arbitrary Code Execution attackEPSS 82.1%CVE-2020-26258MEDIUMServer-Side Forgery Request can be activated unmarshalling with XStreamEPSS 81.8%CVE-2021-21341HIGHXStream can cause a Denial of ServiceEPSS 77.8%