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CVE-2003-0450

20
FAUCET Score

CVE-2003-0450 describes a denial-of-service and potential arbitrary code execution vulnerability in Cistron RADIUS daemon (radiusd-cistron) versions 1.6.6 and earlier. This flaw allows remote attackers to trigger a buffer overflow by sending a large, negatively interpreted value in an NAS-Port attribute. With a CVSS score of 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P), it represents a high-severity vulnerability that can be exploited remotely without authentication, leading to significant impact on confidentiality, integrity, and availability. Despite its age and severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.6CPE matchmatch criteria
cpe:2.3:a:cistron:radius_daemon:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.17%
Probability of exploitation in next 30 days
EPSS Percentile
89.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0417 is in the 82nd percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

debianpatch availablevia nvd_reference
View patch

References

bugs.debian.org / cgi-bin/bugreport.cgi
ExploitPatchVendor Advisory
distro.conectiva.com.br / atualizacoes
debian.org / security/2003/dsa-321
PatchVendor Advisory
novell.com / linux/security/advisories/2003_030_radiusd_cistron.html
turbolinux.com / security/TLSA-2003-40.txt
PatchVendor Advisory