ConnectWise ScreenConnect authentication bypass
The meaningful pattern is capability concentration. A remote-management product is not merely another web application: its legitimate purpose may include controlling many endpoints. Defensive triage should therefore rank identity-boundary failures by the…
- Original severity
- critical; CVSS 10.0 source-reported; not rescored by vulns.co
- Public source
- github advisory
- Program / vendor
- ConnectWise
- Product / surface
- ScreenConnect remote-management application
- Weakness
- Authentication bypass using an alternate path or channel · CWE-288
- Affected boundary
- authentication gate to administrative capability boundary
- Disclosure date
- 2024-02-21
- Public status checked
- 2026-09-10
What the evidence established
The advisory describes a path that could bypass normal authentication in affected remote-management installations.
Why the impact was credible
The source rates the issue Critical with CVSS 10.0; remote-management systems can carry broad administrative authority.
Durable engineering lesson
The meaningful pattern is capability concentration. A remote-management product is not merely another web application: its legitimate purpose may include controlling many endpoints. Defensive triage should therefore rank identity-boundary failures by the downstream authority the product already possesses, while keeping public writeups focused on remediation rather than operational misuse.
Control pattern
Upgrade promptly, inventory every self-hosted instance, remove unnecessary internet exposure, and review privileged access after patching under established response procedures.
Primary public disclosure
Upstream availability and wording can change. Public status was last checked 2026-09-10.