Improper certificate validation in Intercom, Inc. MaLion for Mac
Priority LOW 28CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
MaLion for Mac 4.3.0 to 5.2.1 does not properly validate certificates, which may allow an attacker to eavesdrop on an encrypted communication.
Why it matters now
EPSS 0.00769 55th 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 Mac | 4.3.0 to 5.2.1 | — | No fix listed | CNA |
- MaLion for Mac VendorIntercom, Inc. Affected 4.3.0 to 5.2.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| 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:*:*:*:*:*:macos:*:* 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-2017-10819
- 2026-10-03 Alias added: GHSA-vrhj-mrvh-x542
References
More Intercom, Inc. Malion vulnerabilities
- TI-2017-07918 Improper authentication in Intercom, Inc. MaLion for Windows and Mac CVSS 3.1CRITICAL 9.8
- 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
Sources
- CVE-2017-10819 · CVE Program
- CVE-2017-10819 · NVD
- FIRST EPSS
- GHSA-vrhj-mrvh-x542 · 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