CVE-2005-4681: Buffer overflow in mIRC 5.91, 6.03, 6.12, and 6.16 allows local users to execute arbitrary code via a long string that is entered after reaching the D...

Description

Buffer overflow in mIRC 5.91, 6.03, 6.12, and 6.16 allows local users to execute arbitrary code via a long string that is entered after reaching the DCC Get Folder Dialog. NOTE: this issue has been disputed by the vendor, saying "as far as I can tell, this is neither an exploit nor a vulnerability. The above report describes a local bug in mIRC." It could be that this is only exploitable by the user of the application, and thus would not cross privilege boundaries unless under an otherwise restrictive environment such as a kiosk

Metrics

EPSS Probability

0.59%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Khaled Mardam-Bey	Mirc	5.91
Khaled Mardam-Bey	Mirc	6.03
Khaled Mardam-Bey	Mirc	6.12
Khaled Mardam-Bey	Mirc	6.16

References

Timeline

Published: Dec 31, 2005
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2005-4681?

Buffer overflow in mIRC 5.91, 6.03, 6.12, and 6.16 allows local users to execute arbitrary code via a long string that is entered after reaching the DCC Get Folder Dialog. NOTE: this issue has been disputed by the vendor, saying "as far as I can tell, this is neither an exploit nor a vulnerability. The above report describes a local bug in mIRC." It could be that this is only exploitable by the user of the application, and thus would not cross privilege boundaries unless under an otherwise restrictive environment such as a kiosk

How severe is CVE-2005-4681?

Severity scoring for CVE-2005-4681 is pending analysis. The EPSS model estimates a 0.59% probability of exploitation in the next 30 days.

How do I fix CVE-2005-4681?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.