CVE-2004-2163 json
login_radius on OpenBSD 3.2, 3.5, and possibly other versions does not verify the shared secret in a response packet from a RADIUS server,…
published 2004-12-31 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-2155
- cvss
- 7.5
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known
Summary
login_radius on OpenBSD 3.2, 3.5, and possibly other versions does not verify the shared secret in a response packet from a RADIUS server, which allows remote attackers to bypass authentication by spoofing server replies.
Patch / fix
- openbsd.org/errata35.html#radius patch
- securityfocus.com/bid/11227 patch
- reseau.nl/advisories/0400-openbsd-radius.txt advisory
- secunia.com/advisories/12617 advisory
Exploit prediction
1.70% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
References
-
openbsd.org
/errata35.html#radius
patch
-
securityfocus.com
/bid/11227
vdb-entry, patch
-
reseau.nl
/advisories/0400-openbsd-radius.txt
patch, vendor-advisory
-
secunia.com
/advisories/12617
third-party-advisory, patch, vendor-advisory
-
archives.neohapsis.com
/archives/vulnwatch/2004-q3/0058.html
mailing-list, vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/17456
vdb-entry
-
osvdb.org
/10203
vdb-entry
Sources
- CVE List CVE-2004-2163
- NVD CVE-2004-2163
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.