Is CVE-2021-31589 actively exploited?

Yes. CVE-2021-31589 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-31589 be exploited remotely?

The attack vector of CVE-2021-31589 has not been classified yet.

What is the CVSS score of CVE-2021-31589?

CVE-2021-31589 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-31589

UNKNOWNCISA KEVIN THE WILD

CVE-2021-31589

Published: April 11, 2026

EPSS:16.37%probability of exploitation in 30 daysPercentile:94.9th

Official Description

A cross-site scripting (XSS) vulnerability has been reported and confirmed for BeyondTrust Secure Remote Access Base Software version 6.0.1 and older, which allows the injection of unauthenticated, specially-crafted web requests without proper sanitization.

NVD Source

Technical Analysis

CVE-2021-31589 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-2021-31589 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.