Improper authentication in Intercom, Inc. MaLion for Windows and Mac
Priority MEDIUM 48CWE-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
MaLion for Windows and Mac 5.0.0 to 5.2.1 allows remote attackers to bypass authentication to alter settings in Relay Service Server.
Why it matters now
EPSS 0.03127 87th 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 |
|---|---|---|---|---|---|
| Intercom, Inc. | MaLion for Windows and Mac | 5.0.0 to 5.2.1 | — | No fix listed | CNA |
- MaLion for Windows and Mac VendorIntercom, Inc. Affected 5.0.0 to 5.2.1 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:intercom:malion:*:*:*:*:*:macos:*:* | up to 5.2.1 | Vulnerable | Intercom, Inc. |
| cpe:2.3:a:intercom:malion:*:*:*:*:*:windows:*:* | up to 5.2.1 | Vulnerable | Intercom, Inc. |
- cpe:2.3:a:intercom:malion:*:*:*:*:*:macos:*:* Versions up to 5.2.1 Vulnerable ·Intercom, Inc.
- cpe:2.3:a:intercom:malion:*:*:*:*:*:windows:*:* Versions up to 5.2.1 Vulnerable ·Intercom, Inc.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-10817
- 2026-10-03 Alias added: GHSA-pqx6-26gh-vx6h
References
More Intercom, Inc. Malion vulnerabilities
- TI-2017-07919 Hard-coded credentials in Intercom, Inc. MaLion for Windows and Mac CVSS 3.1CRITICAL 9.8
- TI-2017-07917 SQL injection in Intercom, Inc. MaLion for Windows and Mac CVSS 3.1CRITICAL 9.8
- TI-2017-07916 Improper authentication in Intercom, Inc. MaLion for Windows CVSS 3.0HIGH 8.1
- TI-2017-07920 Improper certificate validation in Intercom, Inc. MaLion for Mac CVSS 3.1MEDIUM 5.9
Sources
- CVE-2017-10817 · CVE Program
- CVE-2017-10817 · NVD
- FIRST EPSS
- GHSA-pqx6-26gh-vx6h · 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