CVSS v3
8.8
HIGH
EPSS Score
93.6%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
XStream before version 1.4.14 is vulnerable to Remote Code Execution.The vulnerability may allow a remote attacker to run arbitrary shell commands only by manipulating the processed input stream. Only users who rely on blocklists are affected. Anyone using XStream's Security Framework allowlist is not affected. The linked advisory provides code workarounds for users who cannot upgrade. The issue is fixed in version 1.4.14.
Active exploitation of CVE-2020-26217 has not been confirmed. The EPSS score is 93.6%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2020-26217 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).