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TI-2003-01236 Aliases CVE-2003-1336GHSA-48c9-rw99-398v

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

Priority HIGH 66CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Code execution
Confidentiality · integrity · availability
Complete · Complete · Complete
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

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

Why it matters now

EPSS 0.35706 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mirc:mirc:*:*:*:*:*:*:*:*up to 6.1VulnerablemIRC
  • cpe:2.3:a:mirc:mirc:*:*:*:*:*:*:*:* Versions up to 6.1 Vulnerable ·mIRC

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2003-1336
  2. 2026-10-03 Alias added: GHSA-48c9-rw99-398v

References

Patch 2

Other 1

  • TI-2019-04520 mIRC before 7.55 allows remote command execution by using argument injection through… CVSS 3.0HIGH 8.1
  • TI-2008-04241 Stack-based buffer overflow in mIRC 6.34 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 9.3
  • TI-2008-06995 mIRC before 6.35 allows attackers to cause a denial of service (crash) via a long nickname. CVSS 3.1HIGH 7.5
  • TI-2007-04262 Multiple unspecified scripts in mIRC allow user-assisted remote attackers to execute… CVSS 2.0MEDIUM 6.8
  • TI-2011-04554 mIRC prior to 7.22 has a message leak because chopping of outbound messages is mishandled. CVSS 3.1MEDIUM 5.3
  • TI-2003-01408 Buffer overflow in mIRC 6.12, when the DCC get dialog window has been minimized and the… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences