Insufficiently protected credentials in Trend Micro InterScan Messaging Security Virtual…
Priority MEDIUM 55CWE-522Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-522.
Summary
A vulnerability in the Trend Micro InterScan Messaging Security Virtual Appliance 9.0 and 9.1 management portal could allow an unauthenticated user to access sensitive information in a particular log file that could be used to bypass authentication on vulnerable installations.
Why it matters now
EPSS 0.21446 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 |
|---|---|---|---|---|---|
| Trend Micro | Trend Micro InterScan Messaging Security Virtual Appliance | 9.0 and 9.1 | — | No fix listed | CNA |
- Trend Micro InterScan Messaging Security Virtual Appliance VendorTrend Micro Affected 9.0 and 9.1 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Trendmicro |
| cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.1:*:*:*:*:*:*:* | 9.1 | Vulnerable | Trendmicro |
- cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Trendmicro
- cpe:2.3:a:trendmicro:interscan_messaging_security_virtual_appliance:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·Trendmicro
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-3609
- 2026-10-03 Alias added: GHSA-999p-3hf6-2qgp
References
More Trend Micro vulnerabilities
- TI-2025-34668 OS command injection in Trend Micro Apex One KEVCVSS 3.1CRITICAL 9.8
- TI-2022-10115 Insufficient verification of data authenticity in Trend Micro Apex Central KEVCVSS 3.1CRITICAL 9.8
- TI-2020-06895 Trend Micro Apex One (2019) and OfficeScan XG server contain a vulnerable EXE file that… KEVCVSS 3.1CRITICAL 9.8
- TI-2021-14867 Unrestricted file upload in Trend Micro Apex One KEVCVSS 3.1HIGH 8.8
- TI-2020-06795 Injection in Trend Micro OfficeScan, Trend Micro Apex One, Trend Micro Worry-Free… KEVCVSS 3.1HIGH 8.8
- TI-2020-06794 A migration tool component of Trend Micro Apex One (2019) and OfficeScan XG contains a… KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2018-3609 · CVE Program
- CVE-2018-3609 · NVD
- FIRST EPSS
- GHSA-999p-3hf6-2qgp · 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