Is CVE-2021-42258 actively exploited?

Yes. CVE-2021-42258 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-42258 be exploited remotely?

The attack vector of CVE-2021-42258 has not been classified yet.

What is the CVSS score of CVE-2021-42258?

CVE-2021-42258 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-42258

HIGHCISA KEVIN THE WILD

CVE-2021-42258

Published: November 3, 2021

EPSS:93.81%probability of exploitation in 30 daysPercentile:99.9th

Official Description

BQE BillQuick Web Suite contains an SQL injection vulnerability when accessing the username parameter that may allow for unauthenticated, remote code execution.

NVD Source

CISA KEV Advisory

BQE BillQuick Web Suite SQL Injection Vulnerability

BQE BillQuick Web Suite contains an SQL injection vulnerability when accessing the username parameter that may allow for unauthenticated, remote code execution.

Added to KEV: 2021-11-03Federal patch deadline: 2021-11-17⚠ USED IN RANSOMWARE CAMPAIGNS

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This SQL injection vulnerability in BQE BillQuick Web Suite, specifically in the username parameter, can lead to unauthenticated, remote code execution. With an EPSS score of 0.93812, the likelihood of exploitation is very high, and its inclusion in CISA's KEV confirms active exploitation, making this a severe risk.

This vulnerability is actively being exploited in the wild. It allows for unauthenticated, remote code execution via SQL injection.

Recommended Action

Organizations should apply the latest security updates and patches for BQE BillQuick Web Suite. Implement input validation and parameterized queries to prevent SQL injection attacks.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-42258 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-2021-42258 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.