CVE-2026-848699.9CriticalCWE-862
ConnectWise ScreenConnect Improper Privilege Management and Missing Authorization Vulnerability
ConnectWise · ScreenConnect
Exploited in the wild · in CISA KEV since 11 SepVendor fix available
0.9%probability of exploitation in the next 30 days
60th percentile
050100
Higher than 60% of scored CVEs
9.9CriticalCVSS 3.1
LowMediumHighCrit.
Federal deadline
CISA KEV · added 11 Sep · catalogue entry
Passed 42 days ago
DescriptionNVD
A condition in the ScreenConnect client may allow files to be transferred and executed through an active remote session without authorization or Host confirmation in certain circumstances. ScreenConnect servers are not impacted.
CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Coverage5 articles · 4 outlets
One row per outlet, in order of first report. First in our coverage: CISA, 11 Sep.
Quiet for 6 weekslast report 14 Sep5 articles4 outlets
- Fri 11 Sep, 20:32 UTC. CISA, first report. Actively Exploited ScreenConnect Flaw Enables Unauthorised File Execution. Cites a CVE in CISA KEV.
- Sat 12 Sep, 09:11 UTC. SecurityOnline, its first report on the story. CISA Warns of Active ScreenConnect Flaw Enabling File Execution. Cites a CVE in CISA KEV.
- Mon 14 Sep, 03:11 UTC. SecurityOnline. CISA Tracks Exploitation of Critical N-central, GitLab and MikroTik Flaws. Cites a CVE in CISA KEV.
- Mon 14 Sep, 09:00 UTC. SecurityWeek, its first report on the story. ConnectWise Patches ScreenConnect Flaw Exploited in Worm Attacks. Cites a CVE in CISA KEV.
- Mon 14 Sep, 15:26 UTC. Security Affairs, its first report on the story. CISA Flags Artifactory, ScreenConnect and GitLab Flaws as Exploited. Cites a CVE in CISA KEV.
- First report
- Article
- Official notice
- Running total
Added to CISA KEV
Show as tableHide table
| Published (UTC) | Outlet | Headline |
|---|---|---|
| 11 Sep 20:32 | CISA | Actively Exploited ScreenConnect Flaw Enables Unauthorised File Execution |
| 12 Sep 09:11 | SecurityOnline | CISA Warns of Active ScreenConnect Flaw Enabling File Execution |
| 14 Sep 03:11 | SecurityOnline | CISA Tracks Exploitation of Critical N-central, GitLab and MikroTik Flaws |
| 14 Sep 09:00 | SecurityWeek | ConnectWise Patches ScreenConnect Flaw Exploited in Worm Attacks |
| 14 Sep 15:26 | Security Affairs | CISA Flags Artifactory, ScreenConnect and GitLab Flaws as Exploited |
- CISA Flags Artifactory, ScreenConnect and GitLab Flaws as ExploitedSecurity Affairs · mentions it in passing
- Actively Exploited ScreenConnect Flaw Enables Unauthorised File ExecutionCISA · official notice · first in our coverage
New articles also arrive in the RSS feed.