Apply vendor patches immediately. For federal agencies, comply with CISA's binding operational directive. If patches are unavailable, restrict network access, enable multi-factor authentication, and monitor for suspicious activity. Consult official advisories from JFrog, ConnectWise, and MikroTik for specific patch versions.
Quick answers
What is CVE-2026-42016?
Apply vendor patches immediately. For federal agencies, comply with CISA's binding operational directive. If patches are unavailable, restrict network access, enable multi-factor authentication, and monitor for suspicious activity. Consult official advisories from JFrog, ConnectWise, and MikroTik for specific patch versions.
How severe is CVE-2026-42016?
critical, CVSS 8.1
Is CVE-2026-42016 known to be exploited?
It is not marked known-exploited in this record.
How should CVE-2026-42016 be mitigated?
Apply vendor patches immediately. For federal agencies, comply with CISA's binding operational directive. If patches are unavailable, restrict network access, enable multi-factor authentication, and monitor for suspicious activity. Consult official advisories from JFrog, ConnectWise, and MikroTik for specific patch versions.
CVSS
8.1
Vendor
JFrog
Published
Sep 30, 2026 · 08:42
Patch
Unknown / not confirmed
Affected products
Artifactory, ScreenConnect, RouterOS
Mitigation
Apply vendor patches immediately. For federal agencies, comply with CISA's binding operational directive. If patches are unavailable, restrict network access, enable multi-factor authentication, and monitor for suspicious activity. Consult official advisories from JFrog, ConnectWise, and MikroTik for specific patch versions.
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added five security vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, affecting JFrog Artifactory, ConnectWise ScreenConnect, and MikroTik RouterOS. The flaws, including CVE-2026-42016 (CVSS 8.1), are being actively exploited, prompting urgent patching guidance.
