CVE-2003-0450

Cistron RADIUS daemon (radiusd-cistron) 1.6.6 and earlier allows remote attackers to cause a...

7.5 HighFix available

Cistron RADIUS daemon (radiusd-cistron) 1.6.6 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large value in an NAS-Port attribute, which is interpreted as a negative number and causes a buffer overflow.

Exploit likelihood

4.17%Down 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2003-0450
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2003-0450
Updated: 2026-11-02

EUVDEUVD-2003-0444 No score

Record: EUVD-2003-0444
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cw35-p78f-2qfc No score

Cistron RADIUS daemon (radiusd-cistron) 1.6.6 and earlier allows remote attackers to cause a...

Record: GHSA-cw35-p78f-2qfc
Updated: 2026-11-02

Affected products

cistron radius daemon

Affected packages

Affected packages
Package	Affected	Fixed
`radiusd-cistron` Debian:3.0	before 1.6.6-1woody1	1.6.6-1woody1

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-2003-0450 is a high vulnerability (CVSS 7.5) in Cistron Radius Daemon, published June 13, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.17%, the 90th percentile. Fixed in radiusd-cistron 1.6.6-1woody1.