Description
Multiple format string vulnerabilities in the DCC functionality in KVIrc 3.4 and 4.0 have unspecified impact and remote attack vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | kvirc | 4:4.0.0~svn4340+rc3-1 | — |
| Debian 13 | kvirc | 4:4.0.0~svn4340+rc3-1 | — |
| Debian 12 | kvirc | 4:4.0.0~svn4340+rc3-1 | — |
| Debian 5.0 | kvirc | 2:3.4.0-5 | DSA-2065-1 |
Advisories 1
- DSA-2065-1 kvirc - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- FEDORA-2010-10522 vendor-advisory
- [KVIrc] 20100517 Proposal for a stable release of kvirc4 mailing-list
- 40746 vdb-entry
- ADV-2010-1602 vdb-entry
- FEDORA-2010-10529 vendor-advisory
- DSA-2065 vendor-advisory
- 40349 third-party-advisory
- SUSE-SR:2010:014 vendor-advisory
- 32410 third-party-advisory