CVE-2006-6811

6.5
MEDIUMCVSS v3.1 Base Score
10.57%
LOW RiskEPSS (96th percentile)

KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference. NOTE: this issue was originally reported as a buffer overflow.

Published: 12/29/2006
Modified: 6/16/2026
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Vulnerability Summary

CVSS v3 Score

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2 Score

4.3

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS Score (Exploitation Probability)

10.57%LOW Exploitation Risk
96th percentile

This vulnerability has a 10.57% probability of being exploited in the next 30 days, ranking higher than 96% of all scored CVEs.

CWE Classification

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