CVE-2003-1336

NONECVSS 0.0Trending — 3 sources updated this weekWeaponized

0.0

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

CVSS v3: —
EG Score: 0.0(none)
EPSS: 99.1%
KEV: Not listed

Published

December 31, 2003

Last Modified

April 16, 2026

References (12)

cve@mitrehttp://archives.neohapsis.com/archives/ntbugtraq/2003-q4/0060.html
cve@mitrehttp://secunia.com/advisories/9996
cve@mitrehttp://www.osvdb.org/2665
cve@mitrehttp://www.securiteam.com/windowsntfocus/6M00B0U8KE.html
cve@mitrehttp://www.securityfocus.com/bid/8819
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/13405
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/ntbugtraq/2003-q4/0060.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/9996
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/2665
af854a3a-2127-422b-91ae-364da2661108http://www.securiteam.com/windowsntfocus/6M00B0U8KE.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/8819
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/13405

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-119Buffer Operations Within Bounds (Buffer Overflow)

Data Freshness Timeline

(refreshed 8× in last 7d / 14× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 17:03 UTCEG score recompute
2026-05-31 17:03 UTCGHSA enrichment
2026-05-31 00:13 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-16530✓ verified
First seen May 9, 2010
mIRC - IRC URL Buffer Overflow (Metasploit)
Open source ↗
Exploit-DBEDB-112✓ verified
First seen Oct 21, 2003
mIRC 6.1 - 'IRC' Protocol Remote Buffer Overflow
Open source ↗
Metasploitexploit/windows/browser/mirc_irc_url✓ verified
First seen Oct 13, 2003
mIRC IRC URL Buffer Overflow
Open source ↗

Frequently asked(4)

What is CVE-2003-1336?

CVE-2003-1336 is a none vulnerability published on December 31, 2003. Buffer overflow in mIRC before 6.11 allows remote attackers to execute arbitrary code via a long irc:// URL.

When was CVE-2003-1336 disclosed?

CVE-2003-1336 was first published in the National Vulnerability Database on December 31, 2003, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2003-1336 actively exploited?

CVE-2003-1336 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2003-1336?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1336, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2003-1336

📅 Published

🔄 Last Modified

🔗 References (12)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2003-1336?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (12)

Frequently asked(4)

Related CVEs(same CWE)