Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN…
Priority LOW 29CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Partial · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
Cerulean Studios Trillian 3.1 Basic does not check SSL certificates during MSN authentication, which allows remote attackers to obtain MSN credentials via a man-in-the-middle attack with a spoofed SSL certificate.
Why it matters now
EPSS 0.01374 72nd 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:cerulean_studios:trillian:3.1:*:*:*:basic:*:*:* | 3.1 | Vulnerable | Cerulean Studios |
- cpe:2.3:a:cerulean_studios:trillian:3.1:*:*:*:basic:*:*:* Versions 3.1 Vulnerable ·Cerulean Studios
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-4831
- 2026-10-03 Alias added: GHSA-4r5v-2f2w-h6rr
References
—
More Cerulean Studios Trillian vulnerabilities
- TI-2008-05143 Heap-based buffer overflow in the XML parser in the AIM plugin in Trillian before… CVSS 2.0HIGH 10.0
- TI-2008-05141 Stack-based buffer overflow in the image tooltip implementation in Trillian before… CVSS 2.0HIGH 10.0
- TI-2007-03716 Buffer overflow in the AOL Instant Messenger (AIM) protocol handler in AIM.DLL in… CVSS 2.0HIGH 9.3
- TI-2008-05142 Double free vulnerability in the XML parser in Trillian before 3.1.12.0 allows remote… CVSS 2.0HIGH 10.0
- TI-2007-03200 Heap-based buffer overflow in Cerulean Studios Trillian 3.x before 3.1.6.0 allows remote… CVSS 2.0HIGH 9.3
- TI-2002-02302 Buffer overflow in the IDENT daemon (identd) in Trillian 0.6351, 0.725, 0.73, 0.74 and… CVSS 2.0HIGH 10.0
Sources
- CVE-2009-4831 · CVE Program
- CVE-2009-4831 · NVD
- FIRST EPSS
- GHSA-4r5v-2f2w-h6rr · 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