CVE-2021-21345
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker who has sufficient rights to execute commands of the 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. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.
Vulnerability Summary
CVSS v3 Score
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:N/I:H/A:N
CVSS v2 Score
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS Score (Exploitation Probability)
This vulnerability has a 86.56% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.
Related Vulnerabilities
Same Weakness Type(CWE-502, CWE-94)
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Similar SeverityMEDIUM
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Microsoft Defender Denial of Service Vulnerability
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