CVE-2009-4831
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.
Does this matter?
Lower severity and a low EPSS score (1.37%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
- EPSS
- 1.37% probability · 72th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- cerulean studios/trillian
- Source
- cve@mitre.org
EPSS 1.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://secunia.com/advisories/35620Broken Link
- http://www.securityfocus.com/archive/1/504573/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/35509Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51400Third Party Advisory, VDB Entry
- http://secunia.com/advisories/35620Broken Link
- http://www.securityfocus.com/archive/1/504573/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/35509Broken Link, Third Party Advisory, VDB Entry
- https://exchange.xforce.ibmcloud.com/vulnerabilities/51400Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.