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CVE-2006-6811

MediumPublished

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,...

Published: Dec 29, 2006
Updated: Aug 7, 2024
Assigning CNA: mitre
Evidence observed: Dec 26, 2006

Primary CVSS

6.5/ 10Medium

nvd · CVSS 3.1

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

EPSS probability estimate

10.3%

Moderate · next 30 days

Percentile: 95.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

KsIRC 1.3.12 - 'PRIVMSG' Remote Buffer Overflow (PoC)Exploit
Federico L. Bossi Bonin · linux · Dec 26, 2006

Responsible use

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