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Vulnerability record · CVE-2006-4097 · published 31 December 2006

CVE-2006-4097: Cisco secure access control server vulnerability

Cisco · Secure Access Control Server

Multiple unspecified vulnerabilities in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before 4.1 allow remote attackers to cause a denial of service (crash) via a crafted RADIUS Access-Request packet. NOTE: it has been reported that at least one issue is a heap-based buffer overflow involving the Tunnel-Password attribute.

7.8 CVSS 2.0 High EPSS 4.3% · top 9.3%
7.8CVSS 2.0 base score
4.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Multiple unspecified vulnerabilities in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before 4.1 allow remote attackers to cause a denial of service (crash) via a crafted RADIUS Access-Request packet. NOTE: it has been reported that at least one issue is a heap-based buffer overflow involving the Tunnel-Password attribute.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://osvdb.org/36125
http://secunia.com/advisories/23629 Vendor Advisory
http://securitytracker.com/id?1017475
http://www.cisco.com/warp/public/707/cisco-sa-20070105-csacs.shtml PatchVendor Advisory
http://www.kb.cert.org/vuls/id/443108 US Government Resource
http://www.securityfocus.com/bid/21900
http://www.vupen.com/english/advisories/2007/0068 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/31334
http://osvdb.org/36125
http://secunia.com/advisories/23629 Vendor Advisory
http://securitytracker.com/id?1017475
http://www.cisco.com/warp/public/707/cisco-sa-20070105-csacs.shtml PatchVendor Advisory
http://www.kb.cert.org/vuls/id/443108 US Government Resource
http://www.securityfocus.com/bid/21900
http://www.vupen.com/english/advisories/2007/0068 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/31334

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2006-4098Cisco secure access control server vulnerabilityStack-based buffer overflow in the CSRadius service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before…EPSS 13%10.0CVE-2004-1099Cisco secure access control server vulnerabilityCisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1, when…EPSS 10%10.0CVE-2000-1054Cisco secure access control server vulnerabilityBuffer overflow in CSAdmin module in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to cause a denial of service and possibly exec…EPSS 8.4%10.0CVE-2000-1055Cisco secure access control server vulnerabilityBuffer overflow in CiscoSecure ACS Server 2.4(2) and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary comm…EPSS 4.0%9.3CVE-2013-3466Cisco secure access control server improper authentication vulnerabilityThe EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS server configuration is enabled,…EPSS 5.1%7.5CVE-2008-2441Cisco secure acs vulnerabilityCisco Secure ACS 3.x before 3.3(4) Build 12 patch 7, 4.0.x, 4.1.x before 4.1(4) Build 13 Patch 11, and 4.2.x before 4.2(0) Build 124 Patch 4 does not…EPSS 3.0%7.5CVE-2007-0105Cisco secure access control server vulnerabilityStack-based buffer overflow in the CSAdmin service in Cisco Secure Access Control Server (ACS) for Windows before 4.1 and ACS Solution Engine before …EPSS 11%7.5CVE-2006-3226Cisco secure access control server vulnerabilityCisco Secure Access Control Server (ACS) 4.x for Windows uses the client's IP address and the server's port number to grant access to an HTTP server …EPSS 2.4%

Source: NIST National Vulnerability Database (record CVE-2006-4097), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.