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CVE-2021-39144

πŸ”₯ Known Exploited (CISA KEV)HIGH
8.5
CVSS Severity Score
EPSS Score93.5370%
EPSS Percentile85.29th
Published2021-08-23
Last Modified2025-10-24
Data SourcesNVDCISA KEVFIRST.org EPSS

Vulnerability Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker 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. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Affected Platforms (CPE)

πŸ“¦
Xstream

Xstream

< 1.4.18
πŸ’»
Debian

Debian Linux

= 9.0= 10.0= 11.0
πŸ’»
Fedoraproject

Fedora

= 33= 34= 35
πŸ“¦
Netapp

Snapmanager

All versions

References & Advisories

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