AEGLIX vulnerability intelligence
CVE-2026-84869
CRITICAL · CVSS 9.9 · Analyzed
Published: 2026-09-08 · Updated: 2026-09-12 · Source: NVD
Vulnerability overview
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.
Severity and scoring
- CVSS score
- 9.9 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-269, CWE-862
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- ConnectWise · ScreenConnect
- Added to catalog
- 2026-09-11
- 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.
- CISA remediation due date
- 2026-09-14
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:connectwise:screenconnect:*:*:*:*:*:*:*:*
Before (exclusive): 26.6.5.9742
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://github.com/ConnectWise-Advisories/Disclosures/tree/main/CVE-2026-84869
Third Party Advisory
- https://www.connectwise.com/company/trust/advisories
Vendor Advisory
- https://www.connectwise.com/company/trust/security-bulletins/2026-09-08-screenconnect-bulletin
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-84869
US Government Resource
- https://www.huntress.com/blog/rogue-screenconnect-installations
Third Party Advisory