AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2020-26217

HIGH · CVSS 8 EPSS 85.00% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-11-16 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.0. Public exploit code or proof-of-concept references have been detected in its references. Its EPSS score suggests a 85.0% probability of exploitation in the next 30 days. It may be remotely exploitable.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-26217
Severity
HIGH
CVSS
8
EPSS
85.00%

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)