CISA Adds Three Known Exploited Vulnerabilities to Catalog
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.
Details
Original advisory: https://www.cisa.gov/news-events/alerts/2026/09/11/cisa-adds-three-known-exploited-vulnerabilities-catalog
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Exploitation confirmedCVE-2026-42016Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 57% of all EPSS-scored CVEs.
- Exploitation confirmedCVE-2026-42018Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 58% of all EPSS-scored CVEs.
- Exploitation confirmedCVE-2026-84869Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 51% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-42016 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-42018 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-84869 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownexploitedJFrog security advisory (AV26-867) – Update 2cccs
- unknownexploitedConnectWise security advisory (AV26-903) – Update 1cccs
- highexploited[UPDATE] [hoch] JFrog Artifactory: Mehrere Schwachstellencert-bund
- criticalexploitedCVE-2026-84869: ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerabilit…cisa-kev
- criticalexploitedCVE-2026-42018: JFrog Artifactory Improper Authentication Vulnerabilitycisa-kev
- criticalexploitedCVE-2026-42016: JFrog Artifactory Incorrect Authorization Vulnerabilitycisa-kev
- criticalexploitedCVE-2026-84869: A condition in the ScreenConnect client may allow files to be transferred and executed through…nvd
- highCVE-2026-42018: JFrog Artifactory could return an internal anonymous-user token to an unauthenticated caller w…nvd
- unknownNCSC-2026-0272 [1.00] [M/H] Vulnerabilities patched in JFrog Artifactoryncsc-nl
- high[NEW] [high] JFrog Artifactory: Multiple vulnerabilitiescert-bund
- highCVE-2026-42016: JFrog Artifactory (Self Hosted) versions before 7.133.11 are vulnerable to a privilege escalat…nvd
Recent advisories for CISA Adds Three
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highexploitedCISA Adds Three Known Exploited Vulnerabilities to Catalogcisa · 2026-08-27
- highexploitedCISA Adds Three Known Exploited Vulnerabilities to Catalogcisa · 2026-08-11
- highexploitedCISA Adds Three Known Exploited Vulnerabilities to Catalogcisa · 2026-08-04
- highexploitedCISA Adds Three Known Exploited Vulnerabilities to Catalogcisa · 2026-07-16
- highexploitedCISA Adds Three Known Exploited Vulnerabilities to Catalogcisa · 2026-07-07
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