Is CVE-2006-4097 being actively exploited?

CVE-2006-4097 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2006-4097?

CVE-2006-4097 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2006-4097

HIGH · CVSS 7.8EPSS 4.3%EU EUVD

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.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS score: 4.3% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2006-4089)
Published: December 31, 2006
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-4089 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

cisco / secure access control server
cisco / secure access control server

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Cisco Systems (1100, 1200, 1300, 1400 series Wireless Devices running IOS 12.3 (8JA2; 3200 series Wireless Router running IOS 12..4(6)XE3; AS5350, 5400, 5850 Universal Gateway running IOS 12.4(17); IAD2430 Integrated Access Device running IOS 12.4(17) with Cisco Secure Access Control Server (ACS) version 4.1.4.13 for Microsoft Windows Server - Cisco Systems, Inc. - Common Criteria CCEVS-VR-VID-6013-2008 - archived

References

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(Patch, Vendor 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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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