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VulnerabilitiesSep 11, 2026

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA adds three exploited vulnerabilities to KEV Catalog, impacting JFrog Artifactory and ConnectWise ScreenConnect.

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, citing evidence of active exploitation. The vulnerabilities affect JFrog Artifactory (CVE-2026-42016, CVE-2026-42018) and ConnectWise ScreenConnect (CVE-2026-84869). These are flagged as significant risks, particularly for federal agencies, which are required by Binding Operational Directive (BOD) 26-04 to prioritize remediation of KEV-listed vulnerabilities on public-facing assets.

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The lesson from this incident

Full lesson

Three vulnerabilities affecting JFrog Artifactory and ConnectWise ScreenConnect have been added to CISA's Known Exploited Vulnerabilities (KEV) Catalog due to evidence of active exploitation in the wild. These products are widely deployed in enterprise and federal environments, making unpatched instances high-value targets for threat actors. Federal agencies are legally required under BOD 26-04 to remediate KEV-listed vulnerabilities on public-facing assets within mandated timeframes, yet many organizations still lack the processes to act quickly on such advisories. Delayed patching of actively exploited vulnerabilities significantly increases the window of opportunity for attackers to achieve initial access, lateral movement, or data exfiltration. This underscores the critical need for mature, repeatable vulnerability management programs that can respond rapidly to emerging exploitation activity.

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Indicators of Compromise

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  • cve — CVE-2026-42016
  • cve — CVE-2026-42018
  • cve — CVE-2026-84869

Entities

JFrog Artifactory (product)ConnectWise ScreenConnect (product)CISA (vendor)