Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the…
Priority LOW 28CWE-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
Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different vulnerability than CVE-2009-4831.
Why it matters now
EPSS 0.01098 65th 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 |
|---|---|---|---|---|---|
| — | — | 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:5.1.0.19:*:*:*:*:*:*:* | 5.1.0.19 | Vulnerable | Cerulean Studios |
- cpe:2.3:a:cerulean_studios:trillian:5.1.0.19:*:*:*:*:*:*:* Versions 5.1.0.19 Vulnerable ·Cerulean Studios
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-5824
- 2026-10-03 Alias added: GHSA-939c-9c3m-5qxf
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-2012-5824 · CVE Program
- CVE-2012-5824 · NVD
- FIRST EPSS
- GHSA-939c-9c3m-5qxf · 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