CVE-2008-4748

Format string vulnerability in the URI handler in KVirc 3.4.0, when set as the default...

7.6 HighPublic exploitFix available

Format string vulnerability in the URI handler in KVirc 3.4.0, when set as the default application for processing IRC URIs, allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via format string specifiers in the irc:// URI.

Exploit likelihood

8.16%Down 4.3 points since Feb 4, 2022

What each source reports

NVD Score used 7.6

Record: CVE-2008-4748
CVSS 2.0: 7.6 HighAV:N/AC:H/Au:N/C:C/I:C/A:C
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2008-4748
Updated: 2026-11-02

EUVDEUVD-2008-4728 No score

Record: EUVD-2008-4728
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jj7q-9hhv-3pcp No score

Format string vulnerability in the URI handler in KVirc 3.4.0, when set as the default...

Record: GHSA-jj7q-9hhv-3pcp
Weakness: CWE-20
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10906-1 No score

kvirc-5.0.0-4.3 on GA media

These are all security issues fixed in the kvirc-5.0.0-4.3 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10906-1
Updated: 2026-11-02

Affected products

kvirc

Affected packages

Affected packages
Package	Affected	Fixed
`kvirc` openSUSE:Tumbleweed	before 5.0.0-4.3	5.0.0-4.3

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	KVIrc 3.4.0 - Virgo Remote Format String (PoC)	2008-10-24

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2008-4748 is a high vulnerability (CVSS 7.6) in Kvirc, published October 27, 2008. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.16%, the 94th percentile. Fixed in kvirc 5.0.0-4.3.