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Vulnerability record · CVE-2006-6811 · published 29 December 2006

CVE-2006-6811: Kde ksirc vulnerability

Kde · Ksirc

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.

6.5 CVSS 3.1 Medium EPSS 11% · top 4.4% CWE-617 · CWE-617
6.5CVSS 3.1 base score, v2 4.3
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
26References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/33443 Broken Link
http://security.gentoo.org/glsa/glsa-200701-26.xml Third Party Advisory
http://securitytracker.com/id?1017453 Broken LinkThird Party AdvisoryVDB Entry
http://www.addict3d.org/index.php?page=viewarticle&trace=0&type=security&ID=8468 Broken Link
http://www.kde.org/info/security/advisory-20070109-1.txt Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:009 Broken Link
http://www.securityfocus.com/archive/1/456379/100/0/threaded Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/21790 Broken LinkExploitThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/usn-409-1 Third Party Advisory
http://www.vupen.com/english/advisories/2006/5199 Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/31134 Third Party AdvisoryVDB Entry
https://issues.rpath.com/browse/RPL-922 Broken Link
https://www.exploit-db.com/exploits/3023 ExploitThird Party AdvisoryVDB Entry
http://osvdb.org/33443 Broken Link
http://security.gentoo.org/glsa/glsa-200701-26.xml Third Party Advisory
http://securitytracker.com/id?1017453 Broken LinkThird Party AdvisoryVDB Entry
http://www.addict3d.org/index.php?page=viewarticle&trace=0&type=security&ID=8468 Broken Link
http://www.kde.org/info/security/advisory-20070109-1.txt Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:009 Broken Link
http://www.securityfocus.com/archive/1/456379/100/0/threaded Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/21790 Broken LinkExploitThird Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/usn-409-1 Third Party Advisory
http://www.vupen.com/english/advisories/2006/5199 Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/31134 Third Party AdvisoryVDB Entry
https://issues.rpath.com/browse/RPL-922 Broken Link
https://www.exploit-db.com/exploits/3023 ExploitThird Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2006-6811), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.