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CVE-2003-0967

24
FAUCET Score

CVE-2003-0967 describes a denial-of-service vulnerability in FreeRADIUS versions 0.9.2 and earlier. A remote attacker can crash the server by sending a malformed RADIUS string attribute, specifically one that is too short but includes a tag, leading to an invalid memcpy operation. This vulnerability has a CVSS score of 5.0, indicating a medium severity. It is easily exploitable over the network with low attack complexity and no authentication required, resulting in a complete denial of service for affected FreeRADIUS servers. While not currently on the CISA KEV catalog or Hot List, exploit code for this heap corruption vulnerability is publicly available on ExploitDB. Despite this, there is no evidence of active exploitation, and the CVE has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.2CPE matchmatch criteria
cpe:2.3:a:freeradius:freeradius:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.64%
Probability of exploitation in next 30 days
EPSS Percentile
90.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-23391 · Nov 20, 2003
This CVE's current EPSS score of 0.0464 is in the 87th percentile among its peer group of 23,705 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, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: freeradius-0:0.9.3-1
View patch

Vendor Advisories (1)

redhatCVE-2003-0967Moderate

security flaw

Nov 20, 2003

References

marc.info
marc.info
marc.info
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10917
redhat.com / support/errata/RHSA-2003-386.html