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Vulnerability record · CVE-2002-1102 · published 4 October 2002

CVE-2002-1102: Cisco vpn 3000 concentrator series software vulnerability

Cisco · Vpn 3000 Concentrator Series Software

The LAN-to-LAN IPSEC capability for Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.4, allows remote attackers to cause a denial of service via an incoming LAN-to-LAN connection with an existing security association with another device on the remote network, which causes the concentrator to remove the previous connection.

5.0 CVSS 2.0 Medium EPSS 1.6% · top 24.8%
5.0CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

The LAN-to-LAN IPSEC capability for Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.4, allows remote attackers to cause a denial of service via an incoming LAN-to-LAN connection with an existing security association with another device on the remote network, which causes the concentrator to remove the previous connection.

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

Affected products

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

References

LinkTags
http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml Vendor Advisory
http://www.securityfocus.com/bid/5622 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/10027
http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml Vendor Advisory
http://www.securityfocus.com/bid/5622 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/10027

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Related vulnerabilities

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

7.8CVE-2006-0483Cisco vpn 3000 concentrator series software vulnerabilityCisco VPN 3000 series concentrators running software 4.7.0 through 4.7.2.A allow remote attackers to cause a denial of service (device reload or user…EPSS 3.2%7.5CVE-2005-4499Cisco vpn 3001 concentrator vulnerabilityThe Downloadable RADIUS ACLs feature in Cisco PIX and VPN 3000 concentrators, when creating an ACL on the Cisco Secure Access Control Server (CS ACS)…EPSS 2.6%7.5CVE-2003-0258Cisco vpn 3015 concentrator vulnerabilityCisco VPN 3000 series concentrators and Cisco VPN 3002 Hardware Client 3.5.x through 4.0.REL, when enabling IPSec over TCP for a port on the concentr…EPSS 2.2%7.5CVE-2002-1092Cisco vpn 3000 concentrator series software vulnerabilityCisco VPN 3000 Concentrator 3.6(Rel) and earlier, and 2.x.x, when configured to use internal authentication with group accounts and without any user …EPSS 1.4%7.5CVE-2002-1097Cisco vpn 3000 concentrator series software vulnerabilityCisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.2, allows restricted administrators to obtain certificate passwords that are stored in plaintex…EPSS 1.1%7.5CVE-2002-1098Cisco vpn 3000 concentrator series software vulnerabilityCisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, adds an "HTTPS on Public Inbound (XML-Auto)(forward/in)" rule but sets the protocol to "ANY"…EPSS 1.3%7.5CVE-2002-1096Cisco vpn 3000 concentrator series software vulnerabilityCisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.1, allows restricted administrators to obtain user passwords that are stored in plaintext in HT…EPSS 1.3%5.0CVE-2006-4313Cisco vpn 3000 concentrator series software vulnerabilityMultiple unspecified vulnerabilities in Cisco VPN 3000 series concentrators before 4.1, 4.1.x up to 4.1(7)L, and 4.7.x up to 4.7(2)F allow attackers …EPSS 12%

Source: NIST National Vulnerability Database (record CVE-2002-1102), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.