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Vulnerability record · CVE-2003-1336 · published 31 December 2003

CVE-2003-1336: Mirc memory buffer overflow vulnerability

Mirc · Mirc

Buffer overflow in mIRC before 6.11 allows remote attackers to execute arbitrary code via a long irc:// URL.

9.3 CVSS 2.0 High EPSS 36% · top 1.6% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

Buffer overflow in mIRC before 6.11 allows remote attackers to execute arbitrary code via a long irc:// URL.

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

Affected products

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

References

LinkTags
http://archives.neohapsis.com/archives/ntbugtraq/2003-q4/0060.html Patch
http://secunia.com/advisories/9996 PatchVendor Advisory
http://www.osvdb.org/2665
http://www.securiteam.com/windowsntfocus/6M00B0U8KE.html Patch
http://www.securityfocus.com/bid/8819 ExploitPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/13405
http://archives.neohapsis.com/archives/ntbugtraq/2003-q4/0060.html Patch
http://secunia.com/advisories/9996 PatchVendor Advisory
http://www.osvdb.org/2665
http://www.securiteam.com/windowsntfocus/6M00B0U8KE.html Patch
http://www.securityfocus.com/bid/8819 ExploitPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/13405

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2008-4449Mirc memory buffer overflow vulnerabilityStack-based buffer overflow in mIRC 6.34 allows remote attackers to execute arbitrary code via a long hostname in a PRIVMSG message.EPSS 39%8.1CVE-2019-6453mIRC URI handler argument injection enables remote command executionmIRC before 7.55 mishandles custom URI protocol handlers, allowing argument injection via an irc:// URI that points to an attacker-controlled .ini fi…EPSS 54%analysed7.5CVE-2008-7314Mirc uncontrolled resource consumption vulnerabilitymIRC before 6.35 allows attackers to cause a denial of service (crash) via a long nickname.EPSS 1.3%6.8CVE-2007-4402Mirc vulnerabilityMultiple unspecified scripts in mIRC allow user-assisted remote attackers to execute arbitrary code via the '|' (pipe) shell metacharacter in the nam…EPSS 3.2%5.3CVE-2011-5282Mirc information exposure vulnerabilitymIRC prior to 7.22 has a message leak because chopping of outbound messages is mishandled.EPSS 1.1%4.3CVE-2003-1508Mirc memory buffer overflow vulnerabilityBuffer overflow in mIRC 6.12, when the DCC get dialog window has been minimized and the user opens the minimized window, allows remote attackers to c…EPSS 2.1%8.8CVE-2026-8452Citrix NetScaler ADC and Gateway memory buffer overflow causes DoSCVE-2026-8452 is a memory buffer overflow (CWE-119) in Citrix NetScaler ADC and NetScaler Gateway that leads to unpredictable or erroneous behavior a…KEVEPSS 1.0%analysed8.8CVE-2009-3459Adobe Reader and Acrobat heap buffer overflow via crafted PDFAdobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 contain a heap-based buffer overflow (CWE-122) triggered by a crafted…KEVEPSS 87%analysed

Source: NIST National Vulnerability Database (record CVE-2003-1336), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.