CVE-2009-4831

NONECVSS 0.0Trending — 3 sources updated this week

0.0

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 v3: —
EG Score: 0.0(none)
EPSS: 63.9%
KEV: Not listed

Published

April 29, 2010

Last Modified

April 29, 2026

References (8)

cve@mitrehttp://secunia.com/advisories/35620
cve@mitrehttp://www.securityfocus.com/archive/1/504573/100/0/threaded
cve@mitrehttp://www.securityfocus.com/bid/35509
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/51400
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/35620
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/504573/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/35509
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/51400

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-295Improper Certificate Validation

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 11:50 UTCEG score recompute
2026-05-29 11:50 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch

Frequently asked(4)

What is CVE-2009-4831?

CVE-2009-4831 is a none vulnerability published on April 29, 2010. 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.

When was CVE-2009-4831 disclosed?

CVE-2009-4831 was first published in the National Vulnerability Database on April 29, 2010, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-4831 actively exploited?

CVE-2009-4831 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 63.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2009-4831?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-4831, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2009-4831

📅 Published

🔄 Last Modified

🔗 References (8)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-4831?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (8)

Frequently asked(4)

Related CVEs(same CWE)