CVE-2004-1099 in the critical feed json
Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3…
published 2004-12-01 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1097
- cvss
- 10.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 10.2%
- EPSS 10.2% chance of exploitation in 30 days, percentile 95%
- public exploits
- 0
- none known
Summary
Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1, when the EAP-TLS protocol is enabled, does not properly handle expired or untrusted certificates, which allows remote attackers to bypass authentication and gain unauthorized access via a "cryptographically correct" certificate with valid fields such as the username.
Patch / fix
- securityfocus.com/bid/11577 advisory
- ciac.org/ciac/bulletins/p-028.shtml advisory
Exploit prediction
10.20% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
References
-
securityfocus.com
/bid/11577
vdb-entry, patch, vendor-advisory
-
ciac.org
/ciac/bulletins/p-028.shtml
third-party-advisory, government-resource, patch, vendor-advisory
-
cisco.com
/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml
vendor-advisory
-
exchange.xforce.ibmcloud.com
/vulnerabilities/17936
vdb-entry
Sources
- CVE List CVE-2004-1099
- NVD CVE-2004-1099
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.