CVE-2004-1052

Buffer overflow in the getnickuserhost function in BNC 2.8.9, and possibly other versions, allows...

10.0 HighFix available

Buffer overflow in the getnickuserhost function in BNC 2.8.9, and possibly other versions, allows remote IRC servers to execute arbitrary code via an IRC server response that contains many (1) ! (exclamation) or (2) @ (at sign) characters.

Exploit likelihood

3.58%Up 0.4 points since Feb 4, 2022

What each source reports

NVD Score used 10.0

Record: CVE-2004-1052
CVSS 2.0: 10.0 HighAV:N/AC:L/Au:N/C:C/I:C/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2004-1052
Updated: 2026-11-02

EUVDEUVD-2004-1050 No score

Record: EUVD-2004-1050
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6gv9-vjjv-fg5m No score

Buffer overflow in the getnickuserhost function in BNC 2.8.9, and possibly other versions, allows...

Record: GHSA-6gv9-vjjv-fg5m
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`bnc` Debian:3.0	before 2.6.4-3.3	2.6.4-3.3

History

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

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

In short

CVE-2004-1052 is a high vulnerability (CVSS 10.0) in Bnc, published November 18, 2004. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.58%, the 89th percentile. Fixed in bnc 2.6.4-3.3.