ConnectWise Automate through 2020.x has insufficient validation on certain authentication…
Priority MEDIUM 45CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
ConnectWise Automate through 2020.x has insufficient validation on certain authentication paths, allowing authentication bypass via a series of attempts. This was patched in 2020.7 and in a hotfix for 2019.12.
Why it matters now
EPSS 0.01343 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:connectwise:automate:*:*:*:*:*:*:*:* | before 2019.12; 2020.0 – 2020.7 | Vulnerable | ConnectWise |
- cpe:2.3:a:connectwise:automate:*:*:*:*:*:*:*:* Versions before 2019.12; 2020.0 – 2020.7 Vulnerable ·ConnectWise
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15027
- 2026-10-03 Alias added: GHSA-g8x9-c837-mpx5
References
More ConnectWise Automate vulnerabilities
- TI-2021-14026 An XXE vulnerability exists in ConnectWise Automate before 2021.0.6.132. CVSS 3.1CRITICAL 9.8
- TI-2025-10528 HTTP Configuration and Encryption in Transit CVSS 3.1CRITICAL 9.6
- TI-2020-12466 The Agent Update System in ConnectWise Automate before 2020.8 allows Privilege Escalation… CVSS 3.1HIGH 8.8
- TI-2026-07986 The ConnectWise Automate™ Agent does not fully verify the authenticity of components… CVSS 3.1HIGH 8.8
- TI-2025-10529 Self-Update Verification Mechanism Process in ConnectWise Automate CVSS 3.1HIGH 8.8
- TI-2023-25574 ConnectWise ScreenConnect through 23.8.4 allows man-in-the-middle attackers to achieve… CVSS 3.1HIGH 8.1
Sources
- CVE-2020-15027 · CVE Program
- CVE-2020-15027 · NVD
- FIRST EPSS
- GHSA-g8x9-c837-mpx5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences