Format string vulnerability in the URI handler in KVirc 3.4.0, when set as the default…
Priority MEDIUM 44CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.08158 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-4748
- 2026-10-03 Alias added: GHSA-jj7q-9hhv-3pcp
References
More Kvirc vulnerabilities
- TI-2010-02354 Multiple format string vulnerabilities in the DCC functionality in KVIrc 3.4 and 4.0 have… CVSS 2.0HIGH 10.0
- TI-2008-06758 Argument injection vulnerability in the URI handler in KVIrc 3.4.2 Shiny allows remote… CVSS 2.0HIGH 9.3
- TI-2010-02355 Directory traversal vulnerability in the DCC functionality in KVIrc 3.4 and 4.0 allows… CVSS 2.0HIGH 9.3
- TI-2010-02662 The IRC Protocol component in KVIrc 3.x and 4.x before r4693 does not properly handle \… CVSS 2.0MEDIUM 6.5
Sources
- CVE-2008-4748 · CVE Program
- CVE-2008-4748 · NVD
- FIRST EPSS
- GHSA-jj7q-9hhv-3pcp · GitHub Advisory Database · CC BY 4.0
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