HOMEVULNERABILITIESCVE-2020-25494
UNKNOWNCISA KEVIN THE WILD

CVE-2020-25494

Published: April 11, 2026

EPSS:60.57%probability of exploitation in 30 daysPercentile:98.3th

Official Description

Xinuos (formerly SCO) Openserver v5 and v6 allows attackers to execute arbitrary commands via shell metacharacters in outputform or toclevels parameter to cgi-bin/printbook.

NVD Source

Technical Analysis

CVE-2020-25494 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2020-25494 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
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Quick Facts

CVE IDCVE-2020-25494
Severity
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)60.57%
PublishedApr 11, 2026

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-25494 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.