CVE-2003-1336

Exp

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

Published: 2003-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-1336 is rated High Exploit Risk (81.6/100): CVSS Critical severity, with high exploitation likelihood (EPSS 35.71%, 98th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2003-1336

EDB-ID Source Kind Published Link
16530 exploit_db edb 2010-05-09 Exploit-DB ↗
112 exploit_db edb 2003-10-21 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-1336

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 78.41% 35.71% -42.70%
2 2026-05-12 76.58% 78.41% +1.83%
3 2026-05-08 — 76.58% —

Full EPSS history (25 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-1336

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2003-1336

Affected software / configurations for CVE-2003-1336

Vendor Product Version Raw CPE
mirc mirc <= 6.1 cpe:2.3:a:mirc:mirc:*:*:*:*:*:*:*:*

References for CVE-2003-1336

cvelogic Threat Intelligence