CVE-2005-2403

NONECVSS 0.0

0.0

The login protocol in RealChat 3.5.1b does not use authentication, which allows remote attackers to log on as other users by sniffing the beginning of a chat session and replaying it via a modified username.

CVSS v3: —
EG Score: —
EPSS: 71.6%
KEV: Not listed

Published

July 27, 2005

Last Modified

April 16, 2026

References (8)

cve@mitrehttp://seclists.org/lists/bugtraq/2005/Jul/0403.html
cve@mitrehttp://securitytracker.com/id?1014562
cve@mitrehttp://www.securityfocus.com/bid/14358
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/21497
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/lists/bugtraq/2005/Jul/0403.html
af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1014562
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/14358
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/21497

Data Freshness Timeline

(refreshed 12× in last 7d / 18× 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.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
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2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:38 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
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2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2005-2403?

CVE-2005-2403 is a none vulnerability published on July 27, 2005. The login protocol in RealChat 3.5.1b does not use authentication, which allows remote attackers to log on as other users by sniffing the beginning of a chat session and replaying it via a modified username.

When was CVE-2005-2403 disclosed?

CVE-2005-2403 was first published in the National Vulnerability Database on July 27, 2005, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2005-2403 actively exploited?

CVE-2005-2403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2005-2403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-2403, 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-2005-2403

📅 Published

🔄 Last Modified

🔗 References (8)