Critical

CISA Adds Three Known Exploited Vulnerabilities to Catalog

All CISA Advisories
Actively Exploited

Overview

The Cybersecurity and Infrastructure Security Agency (CISA) has added three new vulnerabilities to its Known Exploited Vulnerabilities Catalog, indicating they are being actively exploited. The vulnerabilities include CVE-2026-42016 and CVE-2026-42018, both affecting JFrog Artifactory, and CVE-2026-84869, which impacts ConnectWise ScreenConnect. These vulnerabilities can lead to unauthorized access and privilege escalation, posing significant risks to federal agencies and other organizations that use these products. CISA urges federal agencies to prioritize addressing these vulnerabilities rapidly as part of their security update strategies, while also encouraging all organizations to adopt similar practices to manage their exposure to cyber threats effectively.

Key Takeaways

  • Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
  • Affected Systems: JFrog Artifactory (CVE-2026-42016, CVE-2026-42018), ConnectWise ScreenConnect (CVE-2026-84869)
  • Action Required: Federal agencies are required to prioritize remediation of these vulnerabilities based on risk.
  • Timeline: Newly disclosed

Original Article Summary

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-42016 JFrog Artifactory Incorrect Authorization Vulnerability CVE-2026-42018 JFrog Artifactory Improper Authentication Vulnerability CVE-2026-84869 ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV Catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV Catalog? Submit it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

Impact

JFrog Artifactory (CVE-2026-42016, CVE-2026-42018), ConnectWise ScreenConnect (CVE-2026-84869)

Exploitation Status

This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.

Timeline

Newly disclosed

Remediation

Federal agencies are required to prioritize remediation of these vulnerabilities based on risk. Organizations should apply the latest security updates and patches provided by JFrog and ConnectWise for their respective products. Regularly check for any updates or security advisories from these vendors and ensure systems are configured to prevent unauthorized access.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to CVE, Vulnerability, Patch, and 2 more.

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