CVE-2005-2403

critical

Description

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.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/21497

http://www.securityfocus.com/bid/14358

http://securitytracker.com/id?1014562

Details

Source: Mitre, NVD

Published: 2005-07-27

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.00669